> Twitter's rules and enforcement actions behaved as if the leftist view of transgender people is the only valid and permissible view.

Twitter has changed in that regard since Musk took over. You can pretty much say what you like on trans issues now, as long as it doesn't break other rules. Loads of gender critical feminists have had their accounts restored in the past few months - usually having been suspended for 'misgendering' or some such nonsense.