From what I've heard Mamo has a lot of shit on them. not sure about the other members. But yeah like Chipathy said, its not too far from most bands.
From what I've seen there's been talk of him being a Lolicon/Nationalist and then there's been evidence of him being pretty homophobic too. Again none of this is really surprising. There's also the Domestic Abuse / Menhera imagery which is heavily used and his " Vkei would be dead if it weren't for me " mentality and statements
Though there was the one time he cut his hair and sold it. Their fans are pretty scary too. ( also not surprising ) They harassed and sent the members of kaitou sentai nusumunger death threats after they announced they were going to do a parody of one of their songs ( which they cancelled ).
But like I said, the same shit can be said for any band probably lmao
Nighttime Jae reacted to Himeaimichu in What are some reasons why people dont dig rshitei. The most recent single felt kind o