I'm not sure where you would ever hear something like that from Q followers, nor do I know Mrs. Greene. The most I'd ever seen is calling for the death penalty for many of these corrupt politicians, and although I still don't agree with that, it is different than "mass murder." Q had a recent post calling out sex abuse charges by a long list of both Democrats and Republicans, so it's not like it only targets one side of the isle.
Furthermore, I come from a Jewish family and I've rarely had a problem with antisemitism from these circles. I certainly don't have a problem with calling out names like Soros (who didn't express regret helping the Nazis during his youth) because the Q movement targets Luciferians and not actual Jews. Sure there may be some crazies (as there are in every movement) but it is important to judge Q from the posts themselves and not the people who pervert it, because I've seen multiple posts that actively encourage unity between people of all colors.