Most xenophobes tend to be pretty clear what their opinions are and rarely deny them. Also occam's razor applies. Why assume that they're xenophobic when they repeatedly deny being xenophobic and say that they don't like the chinese government (which is the more rational opinion to take)? Ask such people what they think about Chinese people and it'll become rather clear whether their viewpoints come from xenophobia or not.
> In my home country, Youtube recommendations are mostly related to porn and I have to use VPN to access good-quality content on Netflix. Should I assume the US want to turn my countrymen stupid and horny. Or should I use my critical thinking youtube recomend things that are popular in my Country.
That sounds like a "you problem". Youtube in general does not have much porn. If you're being recommended it somehow then you or someone who shares an ip address with you has been actively searching it and it has narrowed it's suggestions to suit your "interests".
Also this tiktok issue is a reverse situation. Tiktok shows one thing to China and something else to every other country. It's not just the US.