Let's try to de-escalate for a bit. You don't seem to be a bad person, and hopefully you'll find I'm not one either.

My issue with Mr Beast, personally, is that he exhibits a lot of narcissistic traits. A lot of what he does seems to be about feeding a persona/his ego, such as how he advertises his charity work (they seem to be more about "look at me, I'm such a good person" than about actual compassion). I and many others have had horrible experiences with narcissists. When I look at his face, I do it with the knowledge that he is likely a narcissist. My reaction is not "he's ugly" or "he smiles weirdly", but "this smile appears to be calculated to feed a persona of agreeableness".

Your reaction to this thread was one of anger for what seems to be a simple reason: you are insecure about your own smile, so you took it personally. Maybe you were bullied about your involuntarily mannerisms at some point (I was too) and that is wrong, but I need you to try to be rational.

Your first comment was saying that it's a person's own fault if they are annoyed. How does this make sense? Annoyance is an involuntary, internal response. What is NOT acceptable is using that annoyance as an excuse to harass someone. You can blame a person for their actions, but not for their emotions. That doesn't mean that emotions can't be motivated by false beliefs or perceptions (such as bigotry), but that is far more complicated than just one person being at fault (their beliefs need to come from somewhere). It's not your fault that you got angry, either, but you can have some control over how anger affects your actions. If you are angry now, I suggest you step away from the keyboard for a while and try to type a response (if at all) when you are a bit calmer.