From what I've seen, the most vehement "haters" are the same people who overly praise Homura without ever acknowledging her deep character flaws (which ironically is the reason I like her after Sayaka).
In other words, "your waifu is shit compared to mine". In reality Sayaka sometimes beats Homura in some Japanese fan polls, or at least comes close.
Also, Madoka Magica is certainly not garbage.
I also would love Urobuchi to write an RPG for Square.
Hello ladies, is this the line for people who want to badmouth Homura Ameki?!
Because I can throw out some items if need be!