Who was the last “official” Samurai to be alive and was he look up too by newer generations or was he seen as an old man who’s the last of the old days and cast aside? Also why does Japan not “samurai” people I guess you could say like the UK still knights people? Is there no definitive reason as to why or towards the end were they seen as evil?
Short answer: Because the current Japanese constitution doesn't allow any peerage system besides the Imperial family.
Article 14 of the 1947 Japanese Constitution:
Article 14. All of the people are equal under the law and there shall be no discrimination in political, economic or social relations because of race, creed, sex, social status or family origin.
Peers and peerage shall not be recognized.
No privilege shall accompany any award of honor, decoration or any distinction, nor shall any such award be valid beyond the lifetime of the individual who now holds or hereafter may receive it.
Read it here:
http://japan.kantei.go.jp/constitution_and_government_of_japan/constitution_e.html
In 1869 the Meiji state merged the samurai daimyo (the top samurai, the warrior noble class, those that actually ruled several "fiefdoms" instead of just fighting) with the kuge (the court nobles that lived in Kyoto, attending emperor) into a single noble class. This class was called kazoku. The non-ruling samurai were set in a different class, called shizoku, with the other classes/castes from the Confuncian system (farmers, merchants, artisans, monks) becoming the heimin.
In 1884, as Japan adopted its first writtenWsetern-based Constitution, a peerage system was created, emulating that of the British. There were 5 ranks (from Prince to Baron) and most of the former daimyos, kuges and people that had been important to the Meiji state in the last decades become nobles in this hereditary peerage system. Some of the peers were automatically members of the Japanese House of Lords, while others voted in their representatives in that House (and not the general House of representatives). This is oversimplifying things, if you want to read how the Japanese House of Lords changed through time you can read the sources I put in the end.
The number of "Japanese nobles" expanded over time, from around 500 at the beginning to more than 1,000 families at the end. People who did very well at some field, like science, could get in the peer system, just like the Queen knights people nowadays.
But after Japan lost the war, the 1947 Consitution abolished this peer system. At least officially they don't exist. Extra-officially, their families of course still exist today, and you can find people who are of the Date clan, for example. Date Yasamune was born in 1958. But he doesn't have any official special privileges. And the Emperor can't make any new official peers, it only happens when someone marries into the Imperial family, becoming a Prince or Princess. Extraofficially, as I said, the kuges and daimyo samurai still have their surnames and sometimes they still care about who marries whom, but that is like the deposed noble families in Europe, like the former French kings and nobles.
http://www.unterstein.net/or/docs/JapanPeers.pdf
Go here for a list of Japanese peerage created and how the House of Lords changed over time.
Just to be clear, the word "samurai" literary means "warriors who serve (to masters)" in Japanese. Their origins were street thugs, bandits or sentries during the beginning of the Heian period (9~12th century AD), but they begun to be employed by nobles and temples in order to protect territories and local produces. ”Saburau" is a old Japanese word meaning "to hang around" to describe these warriors because they had served someone and hanged around at the master's gates, yards and these protective areas. The origin of a noun "samurai" came from this verb "saburau", and it had actually became common only during the 16th century. In any time of Japanese history during the medieval to today, we use "Bushi" (mononohu) for warriors, and "Kenshi" (kengo) for sword masters. "Ronin" means master-less samurai used after the late 16th century.
So by the mid 19th century after 250 years of peaceful time, most of samurai were nothing but "bureaucrats" with swords on their hips. Of course they were encouraged to learn martial arts and respected if they became good at it, but even in 650 years of the "samurai era" after the Heian period (Kamakura, Muromachi, Azuchi-Momoyama, and Edo), there day-to-day lives were occupied by administrative works, not only for law enforcments, but taxation, logistics, managing public works like flood controls or capital investments. They had to be good at writing documents and do math. So after the Meiji Restoration, many of these former samurai had simply turned into government clerks in order to keep the government moving. Many others had naturally enrolled into military and police forces, or educators, but it's not like samurai had distinctive behaviors or looks in the era, where Sword Prohibition Law was in effect in 1871 and that samurai hairstyle was banned as well at the same time. No one would know if a former-samurai was sitting next you in the train or making a line behind you at the popular restaurant.
So "who was the last samurai" is a very hard question since we don't have a census to track things like that, who was officially employed as a samurai, or who had abandoned the sword at the end, but officially, we know who the last Daimyo was. Daimyo is a lord, or leader of samurai. Tadataka Hayashi (林忠嵩) , born in 1848, became a daimyo and ruler of the Jozai Domain at the age of 19 in 1867 after his uncle's death. It seems that he was a bright teenager beloved by the Shogunate as some rumored that he could be an adviser (karou) at the Edo castle someday. But the later that year when the Boshin War had started, he had abandoned his daimyo rank and domain all together, and joined a raid coup with 70 of his men to protect the Shogunate..., only to be surrendered to the new government in 1868. After being released in 1869, and all former Daimyo was forced to abandon their privileges (inherited lands and government distribution of rice etc) in 1976, he had ended up working in various occupations from a frontier worker in Hokkaido to a low ranking government clerk in Osaka. But he was renobled as a Baron in 1893 and became a caretaker (government worker) in the Tosho-gu shrine until his retirement in the early 20th century. After that, he had lived quietly with his daughter in his death at age of 92 in 1941. It seems that he was a well-known figure during the Showa era as a "last daimyo" getting interviewed by media for a few times.
> Is there no definitive reason as to why or towards the end were they seen as evil?
I don't know what you mean by this and samurai weren't seen as evil at the anytime of our history. If they were, that's probably when they were just hanging around 1000 years ago...