Why do I keep getting suggestions for gun channels?

Literally the only videos I watch on my account are music videos and videogame let's plays. Not once have I ever watched a gun or survivalist-related video on my account and yet my suggestions are absolutely saturated with gun videos. I have nothing against guns. I own a shotgun. This makes no sense. No one else uses my computer or account. I constantly click "not interested" but it doesn't matter. Please help.