Nuance is lost here as it's possible to both support Biden and decry what is happening in Palestine. You'll notice no one here is in favor of genocide though the poster above is correct about people in left spaces loving to tar others with this word as well as other slanders. I suspect they have little concern about how far it carries whatever message they're trying to tote and is merely a symptom of being unable to argue an actual point.
Also, the country is largely centrist regardless of how many of us would like to believe the average person hews left. If you think I'm a centrist, you've got a rude awakening ahead.