And the left have killed how many? In Venezuela, for instance?? Or anywhere they have taken/stolen/imposed control. Your comment leads nowhere & informs the debate not at all.
In my view, neither alts actually give a damn about "morals" in any case. They simply require the other side to shut up. Classic totalinarianism. Which is what all "believers" require, since they are absolutely unable to defend their faith in the face of known, provable facts.
What is known, and provable, is that "imposing" views or any kind of social engineering on the populace only ever works for the political activists striving to climb, or keep their positions on, the greasy pole to power. For the rest of us, we suffer increased interference in, & regulation of, our lives, decreased individual freedoms et al, so that the "state" can thrive. In extremis, it also leads to mass murder & war (against anything you have to appear not to like, whether a portion of the people, drugs, behaviour etc etc).