I don't know exactly what he's referring to. I tend to mentally shut off as soon as he starts talking about things I presume are stupid. I know he thinks that embargoes and political pressures, etc, were in play and somehow Hitler was just being reactionary. There's usually a kernel of truth underneath every stupid conspiracy theory. Is there any accuracy to this?
What sort of pressures does he cite? The Allies definitely had a hostile attitude toward Hitler, but that was in large part because of his belligerent demands.
Hitler did fake a Polish attack on Germany as an excuse to invade Poland. However, that was totally false - the Nazis dressed up some convicts in Polish uniforms, brought them to a radio station near the border, had someone give a short broadcast in the Polish language, and shot the convicts there as if they were an attacking force that had been defeated. Poland had nothing to do with this at all.
The early chapters of The Wages of Destruction by Adam Tooze covers the economy before World War II (as it is a book about the Nazi German economy) very well.
The short version regarding the situation with the Allies and the US is that German diplomacy was able to use the UK and USA to make France accept a lessening of the reparations, and the USA was a major creditor to Germany until Germany elected to suspend debt payments (and made special deals to continue payment on some UK debts to keep the UK and USA from collaborating regarding German debt).
There was a long period of time when Nazi Germany had a choice between rebuilding their economy in an orthodox manner, especially building better trade relations with the USA, or building their military up to engage on a campaign of conquest and domination of Europe. They were very devoted to the latter and every time they had a choice between one path or the other chose to focus on the military—Nazi ideology allowed nothing else.
Their currency had become overvalued when other countries had devalued their currencies, and while this made imports cheaper it made it hard for them to export goods. Since they couldn't export many goods, it was hard for them to get the foreign currency to import their industrial components and pay off their debts. Devaluing their currency could have solved this problem, but since Hitler refused to allow this they elected to focus on the imports they needed to build up their military.