Try thinking. How many campaigns are ongoing around the world saying "heterosexuality is wrong, heterosexuals should be jailed, or killed?" How many -- I'll take just an estimate. Back in the 1960s, just for example, that would include most of the western world (as well as the all those backward countries that are still there). Would you not, if that were the case, stand up and fight for the righrt to be who you are? Or would you crumble and meekly find yourself a same-sex partner?
No, you don't get it because you NEVER SUFFERED IT. Nobody ever tried to shame you because you had a crush on a person of the opposite sex. Nobody ever refused to rent you an apartment, or cater your wedding, because you wanted to marry somebody of the opposite sex.
Well, that's what we lived. Pride days aren't about "pride." Pride days are our ways of saying to a world full of bigots, "F You! We are not going to be ashamed of being who we are, who we must be." :You don't have to do that. And that makes you 100% IGNORANT about the subject you are discussing.
And if ignorance makes you look foolish in a discussion, well, that's on you.