The main problem is that people want to be right, not have a discussion hence the "you don't argue with..."
There is no nuance. There is a clear difference between a centrist like Charlie Kirk and a Klan member, but the left lumps them all together. There is also a clear difference between a sandnigger raping a 4 year old child and a 25 year old man dating a 15 year old woman. But, again, they are lumped together as pedophiles. It's easier if everybody is a nazi or a pedophile then you don't have to think, just consume Fox news or MSNBC and repeat their talking points.