No, you didn’t lmao

Would you call them He if you found out?

Yes I would

if we were friends I might call them the way they want

You specifically said you would actively misgender them, unless they’re your friend, in which case you “might” not actively go out of your way to do so. That’s a dick move, simple as.

And no, you can’t pretend that answer isn’t real by adding “I would never interact with or see a trans person” because that’s not how life works.