You should not support Hamas
So who else is there to support? Who else is willing to fight back against the genocidal Israeli regime? Gi Joe, maybe? The starship Enterprise?
How many of the Palestinians fighting for Hamas actually gives a damn what Hamas stands for? Half? A quarter? Ten percent, maybe? I don't know... but I can tell you this - all of them know, far better than you ever could, what Israel stands for. They have seen it for themselves for the last half-a-century. It was no different than all the Vietnamese people who fought with the Viet Cong - and the liberal hand-wringing over the "evil" Viet Cong sounded exactly the same then as yours do now.
This is what you "enlightened centrists" don't seem to understand... when a genocidal enemy is giving you no other option but to resist using all means available, you don't get to wait around for a political organisation that soothes all your moral hackles - you either join the people handing out AKs or you sit on the sidelines and wait for the mass-murder to claim you, too.
You think your "both-side-ism" is new? It's not... it's been the exact same bullcrap that has been used to smear all anti-colonialist warfare since the start of colonialism.