When is it right to fold an overfull in a loose game with bad players?

[jj_frap]

My definition of "loose game with bad players" is Stars PLO25. It's funny as [censored] to have somebody raising from the BB and the 6 other limpers cold-calling.

He's an example...(Theoretical hand, not a real one.)

You have Ks7sTd9d from the SB, the pot is unraised, and you complete.

The pot comes TT7, giving you the nuts...

You bet the pot and get 2 callers...

A Q comes on the turn.

You bet 2/3 of the pot this time and get one caller.

To make it interesting, the river's an 8, and the one person left in the pot is an above-average player for the PLO25 level, and is fairly aggressive but still makes occasional loose blunders.

You bet half the pot and get raised all-in...

Do you call or fold?