

And democracy is an ideology that we are supposed to follow. That ideology comes mostly in the form of representative democracy where you elect someone that is supposed to represent your group.
You don’t know if Tyler Robinson is left or right , that is all media speculation at this stage. As someone that lived behind the iron curtain, the concept that left is inherently peaceful is complete nonsense. Neither left or right is inherently violent or peaceful. Violence of the far left and far right is always a result of someone who thinks their ideology is superior, disregards all moral grounds, and forces their will and/or dogma on somebody else. Leninist-Marxist, PLO, Earth Liberation Front, too many examples to list. I do agree that the left is generally less violent today.
This is not a chicken and egg problem. Extremists are a result of society’s ailments, not the other way around. . I’ll give you a few examples from the 20th century.