DM thinks that my character is " unrealistic "

This happened back in 2019 but I finally found a place to share with ttrpg players.

I found an online party running a homebrew campaign. The party consisted of 3 girls (including me) 2 dude and DM which is also a dude. Session 0 rolled, I played as a human fighter in his mid 50. The DM looked at my character sheet and asked me " Are you really sure that you gon play as a dude? " That's a bit odd for me, but I just shrugged and said " why not"

Session 1-3 went smoothly. Until the session 4, we were trapped in feywild and the wacky magic the fey made the party's gender swapped. The sorcerer became a girl, bard became a dude. yadayada My character also got turned into a chick, but here's a thing, after a while DM said that the curse faded from everyone except me. He told me that ' because my character doesn't have magic, the cursed will last longer compared to others ' Make sense i guess? So I just rolled with it.

Session 5 passed, session 6 my character still hasn't turned back. I directly asked the DM why character hasn't turned back yet. He told me that ' it fits me, as a player this way' and saying that ' playing character opposite to my gender is unrealistic ' The other girl chimed in saying that the voice that i made for my character sounds nothing like a guy and made everyone uncomfortable. Ofc it's gonna be nothing like a scruffy dude because i ain't a guy irl. DM told me to either continue playing with ' realistic ' character or he'll kick me out of discord server.

No need to say, I immediately left the server. DnD is just playing pretend with more complicated stuff afterall. it's like their pink 6 feet dragonic soercer tiefling is sooo realistic