Your call doesn't matter. You don't have any fold equity. You can go AI and both people will call. You're most probably up against TPTK and a set here. They aren't folding unless that 3rd flush card hits. Not to you anyway.

The other possibility is you're against two sets KK and a 77 or 55. Which again means no one is folding this hand.

Your call of the re-raise wasn't bad. The chance to bust both of the opps was worth that bet. But not the AI one.

My advice is to fold the turn. You have one card left to complete your draw and now face a bet for 3/4 of your stack. Both opps have you beat and if your flush card pairs the board, at least one will still have you beat. Pick a better spot. There are better edges to exploit.