You need more info before calling all in on the flop.

I am not a big fan of opening 6.5x with AA.
When I get donk I would be happy if I can go to showdown cheap.
You can be way behind - 66, TT or even KK that he is not 3beting because you open 6.5 and you are deep.
Or you can be slightly ahead - AsQs, QsJs etc.

I think what happened here is that because you raised so large preflop (for whatever reason, maybe people are crazy and call too much) then people can play all sorts of hands differently preflop now. Now when you choose to raise on the flop, it's possible people can have slightly stronger hands like KK and the pot is a bit larger. I think because you have 12 behind and the price isn't great and you're not doing well vs a lot being fairly deep that it's should be a fold.

Without reads even your flop raise will be pretty thin when villain donks three way after you made a huge open raise from UTG.

When BB shoves for 150bb I'm turbo folding. Even if he has a few draws in his range the equity will still be pretty decent, but micro players don't tend to go bananas like that when getting a bit deep.

KK will also be more likely to call pre after your big open making it difficult to discount the number of sets possible.

Pre: I don't like your sizing here at all. Why so large?!

Flop: Raising here seems OK, I don't mind either raising or flat calling here. When we put in the raise and the extra player ships it then it's a fold. It's possible we're against a combo draw here but even that is unlikely with the way it has gone here.