That's the thing, social media is full of people like Tate pushing all sorts of views. All the things you missed out on with social media that you rightly describe as drama were not important. I don't even have that much of an issue with Tate, he's just obviously trying to get people to pay for his membership. Some of the ideas he pushes are far less dangerous than the other stuff being pushed out there. I do disagree strongly with you taking positions and counseling kids that you are simply supposed to be tutoring. Ask your parents is a perfectly acceptable answer. You were essentially using your position of authority to push your viewpoint on impressionable minds. You may think you were doing right but in reality it was not your job and you were undermining parental roles. If I discovered my kids tutors were doing this I would react poorly.
Their parents trust me to talk to their kids about things they didn't feel comfortable about. Their parents ask me to look out for their kids and implicitly understand that I'm told things that they aren't. I think it's a cultural difference in the role of education between Asian cultures and others. I was even occasionally asked by parents to take a bigger role than I was sometimes comfortable with, for certain things. I was not undermining the parent's roles. I understand your reservations, but they're misguided at best. The parents were who encouraged their kids to call me big brother and have shared their appreciation to me privately.
