Hi,
Villain is REG 24/20/8

In my opinion, the opponent 3betts: TT+, ATs+, AQo+, KQs, QJs, JTs and probably cbets range on flop.
ON TURN: probably bets TT+, flush draws, maybe Ahigh with spade.
RIVER: He probably never bets TT and JJ. Well, he bets QQ+ = 18 combos. According to the theory, he needs to bluff 33%. If he bets on river all of his flush draw he still doesnt have enough bluffs. Do you call this river? Am I calculating something wrong?

I fold this river all the time. You?

Thanks!