Football figures. That sport is way too violent... and demeaning. I mean, look at the ass-whooping the Bears got from the Packers. That has to be demoralizing to any kid Bears fan. Same might be applied to the Vikings since the Pack did the same to them.
Seriously speaking, all TV shows (cartoons and otherwise) have some sort of violence in them. Tom and Jerry, Looney Toons are violent at times and they have been on TV for years. Transfomers, Joes, SW all have guns, Batman movies have violence. Game of Thrones? You could list the seven deadly sins there and probably add another seven. Boys toys aren't the only ones: Barbie has its issues, Bratz. The solution isn't to ban all toys though.
I think if TRU wants to sell Breaking Bad and other collector focused toys, perhaps they need an 18+ section where only adults can go... just don't make them like the curtained room in some comic shops or cigar stores where you'd feel 'dirty' for going in there.