At least one of those is super innocuous and I have no idea why it got moderated. I have thoughts on the others.
LGBTQ+: You probably just don’t want to fuck with any marginalized communities, even if it’s a pretty light touch. It’s not hard to apply a valid slippery slope argument here.
Unborn child: Abortion is a touchy area, but what is reaaalllly touchy is miscarriage, Your meme could be pretty upsetting for someone who has had one or knows someone who has (we all do). I obviously can’t mindread the mods, but there’s a another angle that could explain the deletion. People get worked up about this shit man
Bottom line: if you wanna do edgier memes, fire up an EdgelordMemez community and have at it.