AsKs on the Hijack with the cutoff posting out of turn. UTG+2 Raises (plays 50% 1/2 of all his hands) and UTG+3 then 3 Bets who is a nit playing 9% of his hands.

I fold and the original raiser shoves, and 3 bettor nit calls. Regardless of the flop is this a good fold? Original raiser is JJ, and 3 bettor is KK