And it had to come from CHina?

Well, it didn't. China certainly holds the title for oldest archaeological evidence of noodles, but that's not to stop other peoples from independently coming up with a similar idea. Plus, pasta specifically needs a different type of wheat than typical. More can always be said on the matter, so if anyone else would like to address The Origin Of Pasta, please do go ahead and make your own writeup! For the meantime, OP, here's two posts from u/wotan_weevil on just this matter:

• On The Origin Of Pasta;
• and the agricultural factors that favour pasta.