THEY/THEM PEOPLE

So I know that a lot of you here are a part of the LGBTQIA+ community ( I'm pan too btw) but please explain to me why you guys would like to use the they/ them pronounce like what's the deal when you can just be a femenine guy or masculine girl or just a guy or girl but why popularize a whole pronoun that'll make you sound like you're more than a single person it's so confusing and what the hell happened to this community after the pandemic? The LGBTQIA+ community are the kindest and most talented people I used to know the community was just going with the agenda "love is love" and be tolerant and open minded but currently all our community do is offend people and forced them to whatever the hell we believe not even considering if it would be against their morals and demand respect from them when all we do is disrespect (I'm not trying to offend or disrespect anyone here I just wanted to know why would you used a pronounce ment for more than one person when you're just "you" and sorry for my bad english)