At what point should I have dumped my Aces?

[HajiShirazu]

This is a pretty basic fold on the turn, these guys would have to be idiots for you to be ahead there. You're probably against at least one 6 and/or a flush as these guys have each bet/raised at every opportunity. Wait, didn't notice UTG's call/cap on the flop, that's even worse. Wow. Aces no good. I fold and don't even worry about folding the best hand here.
You should have 3 bet the flop.