Yes they should be folding, very hard for them to be win at SD against two other players with KQq on that board.

QT takes an interesting line....

I don't think it is THAT bad for him to call once flop checks round...I think we should be betting the flop to protect more than anything.

Would I call 3 way with KQ OOP...no but I understand his reasoning. Q10s post flop is fine ofc should do nothing but take this line IMO

I vote for the flop bet as well simply because of the fact that with three other people in the pot you can fold out tons of equity share, plus MP (who should have the strongest preflop range) is far less likely to have a strong hand once he checks the flop.