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Canonically klingons are totally cool with someone transitioning:
One of my favorites, along with:

That final quote is from Worf during the series Picard … maybe season 2?
Well done, very good
Worf could definitely use some encouragement
For anything that doesn’t involve ramming speed or honour, yes
Kor had problems of class and birth within society, but he recognized people are people.
While not perfect, in that instance Kor showed amazing insight and wisdom by just rolling with it.
Damn Curzon, nice glow up!