We live in the real world, not some contrived fantasy world constructed by social media. Most women don’t hate men, but quite a lot of us have had experiences with men that make us wary around them, especially those men who are trying to make us believe things that we know are fundamentally untrue, in this case, that men can be women, which they can’t, and when we refuse to comply, threaten us and try to intimidate us.
Your comment is a very good example of how reductive this ideology is, ‘give me what I want, confirm my feelings 💯, don’t question anything I say, don’t be factual and if you don’t do these things I will cut you off, abuse and threaten you, and/or kill myself’.
What parents can and should do, is refuse to be intimidated and emotionally manipulated by their children, and if the children feel they have all the answers then quite simply tell them to financially support themselves, rather than rely on handouts from their bigoted, transphobic parents.