That first line actually a very accurate description of the main character in Evangellion. Credit where credit's due.
Rebuild are those new movies. Unless you're talking about that unholy, cheesy abomination called End of Evangelion.
I dunno. They were on Funimation and all the kid talked about was how much he hated his dad. And then the red head chick died for no identifiable reason other than making the kid even more depressed. I stopped paying attention around there.
Contact store owner, ask about models, if true, walk out of store and make a note never to go there again; willingly travel a further distance to another store that doesn't support this crap if necessary so i don't have ponies disrupting my grimdark, if false, tell my opponent to get some actual w40k models rather than ponies. What is it with Ponies and spreading themselves into every other universe? Star Wars, Warhammer 40k, Warhammer Fantasy, Team Fortress 2, Half Life, DC universe, PayDay... i mean for crying out loud, it's been done to bloody Chivalry: Medieval Warfare.
A lot of nerds are in the fandom. Bored nerds will mix anything with anything. Also, there's a lot of examples of the things you just listed off as being mixed together as well. People just get mad at FiM because it's so popular.