Because I don't trust anecdotes from individuals. I've spoken with people that think Trump is a communist. I haven't spoken to your friends, and I don't know what specifically it is that you're arguing, because you've been vague. I've been clear in stating that China isn't committing genocide against Uyghurs or trying to push out ethnic minorities, and that's true, but you've been far more vague about what it is that you're trying to argue.
The best and most comprehensive resource I have seen so far is Qiao Collective's Xinjiang: A Resource and Report Compilation. Qiao Collective is explicitly pro-PRC, but this is an extremely comprehensive write-up of the entire background of the events, the timeline of reports, and real and fake claims.
I also recommend reading the UN report and China's response to it. These are the most relevant accusations and responses without delving into straight up fantasy like Adrian Zenz, professional propagandist for the Victims of Communism Foundation, does.
Tourists go to Xinjiang all the time. You can watch videos like this one on YouTube, though it obviously isn't going to be a comprehensive view of course. I don't know if you've been to Urumqi, or Xinjiang in general, but this is another way that we can see what's actually going on.
The ideas pushed by the west, ie mass sterilization, an erasure of Uyghur culture and language, mass killings of Uyghurs, etc are nearly entirely devoid of evidence.
You do realize that you can check the sources compiled by Qiao Collective, right? I also referenced the UN and PRC. The travel influencer bit was an addendum, not the core focus