I'm late on this, but I really gotta disagree on this to the fullest extent. All of this could literally apply to any big "influencer", be it Keemstar, Tana Mongeau, but yet we all still let them have their platform after some certain actions, right? It goes across all sides, no matter where you lie at. Saying that PDP is at fault for this is EXACTLY what the shooter wants, and again, not his fault. I don't see how any normal person would disagree with this.
The guy knew exactly what he was doing: to cause more division. He knew that if he slapped his name with the manifesto, the mainstream media will drive away from supporting the actual victims and drive hard on the fact that it was PDP's fault and that his supporters are alt-right and the reason the guy did such a thing. In which case, ****, I guess people like Markiplier, VoiceoverPete and well,
pretty much everybody across the board are alt-right, then.
In any case, I recommend at the least for anyone on this matter to find donation sites and give what you can to NZ. This is a good one I found.
https://givealittle.co.nz/cause/christchurch-shooting-victims-fund