“By the way, I don’t know how legit this whole conversation is. What’s the Issur of a wedding? “
the halacha of meisah eretz mitroyim uses a lashon of marriage, the chazal learns out an issur of 2 men “marrying” each other from that pasuk. (this is the only possible pshat that doesn’t render this part of a halachich ruling irrelevant)
“The Torah has an Issur of Ma’aseh Biah. I’m not sure why a party celebrating something related to something Assur is Assur for non-Jews.”
see gemara in chullin 93b (this is quoted by poskim as halachaic)
the world only has 3 merits
1. that they don’t write kesubos for men
rashi writes that even though they are o’ver on mishkav zachar and are misyachid (like a spouse) they don’t have the chutzpa to write a “marriage” document