That's fine. You are entitled to your opinion. But when your opinion leads you to spread harmful and incorrect information about a vulnerable minority, you are doing harm. You can't support your position with evidence, and your "alternatives" to transition seem to be "stop being trans" . That harms trans people.
If you want to harm trans people you are entitled to. But don't pretend that you are acting out of anything other than the same hate-mongering bigotry that you bemoan as a "consequence" of transitioning. While you're entitled to your views, those views aren't automatically deserving of respect. If you keep spouting hateful lies, you can expect people to keep calling you out on it.