This is a really controversial question you asked, but I'm kinda glad you asked it anyways. It's good that you challenge your prejudices and your views. I prefer that you ask this question (even if controversial) instead of you going around believing it and having a warped view of reality.
What you are probably experiencing is confirmation bias, and the social media algorithms. Tiktok is doing whatever is necessary to keep you on the platform as long as possible. That's how they make money, by showing you ads.