So I have been thinking about this situation a lot and it is referring more to live play.

Say it limps around to the BB who checks Pre. The SB has 5h5s and the BB has Jc6c. Both players are 120 BB deep.

The flop comes: 5c 6h 7c
Giving one player a set and the other a middle pair and FD

Action is:
SB check
BB bet 3/4 pot
SB raise 3.5x bet
BB All-in
SB Call

the SB is a tight player who seems to be waiting for the nuts. Does it still make sense for the BB to rereraise? I feel like he should call the x/r as he is getting odds and plenty of implied odd. I feel like it is very clear that he is running into sets here given the reads on the SB. I dont think SB does this with 8-7 suited even. If someone can explain their opinion I would appreciate it.

my understanding is that this play is:

fold%(pot) + (1-fold%)(-bet)((2bet+pot)*equity) = EV
and if the player is tight and doesnt x/r light the fold% is small and this play is heavily -EV for BB