Since it's the weekend – if I may, I'd like to make a suggestion, which may be helpful to some:
Stop arguing with people from your past, even your recent past. Stop explaining yourself to them for a while. You may need to take a lot more time to form your new stance, and even to get solid and comfortable with it yourself.
Part of the problem with having been involved in any group (church, cult, ideology, political party) is that we come to believe that we owe other people – especially people who are still in the group – explanations. We don't. And we don't have some sort of mission or calling to "rescue" or "save" them. That's egoic, salvific nonsense.
You can waste a lot of emotional capital trying to justify yourself, your position, your new beliefs when that's completely unnecessary – except to salve ego bruises.
An ego bruise occurs when someone challenges, threatens, name-calls, mocks, belittles, denounces you. You FEEL bruised don't you? Pay attention to that. THAT'S where you get hooked in.
Then your own volley flies. Lengthy explanations. Inner monologue that bashes the other person. Running to friends to tell them how hurt you are that no one understands you, so you can get "there there's" from them.
Stating your new beliefs when you're solid in them yourself is a different matter than what I'm describing above. You come from a stance of inner stability, confidence, restedness, and peace. A batter sets his stance before he swings. A boxer sets his stance beneath he throws a punch.
All power comes from the core. When you're confident you can state what you know. Let the blows come. Let them roll off. Move on in peace.
Get there. Stay there.
I hope this is helpful…. Much peace and love to you all.