Because the political playbook is to argue in bad faith and conservatives are much better convincing their base of that than democrats. Why are many of them convinced that left wing violence is a scourge when right wing violence outweighs it by an overwhelming majority [0] unless you do mental gymnastics after tons of mass shootings (as Kash Patel, who one would think would be aware of related trends to domestic terrorism, so eloquently put it: “I’m sorry. Dylann Roof?”[1])

[0]https://theconversation.com/right-wing-extremist-violence-is... [1] https://www.youtube.com/watch?v=LrkgM9_xOj4

It's not being ignored. It's being judged to be incorrect.