Manosphere content is toxic and harmful but the hyperviolence and desensitisation of the former should not be downplayed. That's where the mass shooters evidently come from.
Bollocks. European teenagers watch just as much porn and play GTA at age 10 and yet we don't end up having 12 children a day die from gun violence [1].
Note, I'm not an anti-gun nut, I think German and British anti-gun laws are ridiculously strict. But the American way of dealing with guns is equally bad.
[1] https://www.sandyhookpromise.org/resources/gun-violence-fact...
Note that this definition of "children" includes ages up 24 years old. Not that the US doesn't have a gun violence problem, but pretending 24 year olds are "children" in order to gain a better sound bite doesn't help anybody.
Then there are gun suicides which I would not count as gun violence, amounting to another 3.5 children + teenagers a day.
I mean, quite a few have come from proto-manosphere circles, too. Elliot Rodger comes to mind.
The fact that this is basically unheard of, while incels shooting up schools is somewhat common, may explain why blame is often thrown at one movement and not the other.
Citation needed?