Try putting all of these players on ranges, run it through an equity calculator, and see what kind of odds you need to call. This is going to be complicated because of the sidepots, but it will be a good exercise for you I think. Folding a coin flip here would be a mistake because of the overlay – you are a big favorite against the first two players to shove.

Sidepots get really tricky with this. I'd approach it like this:

Depending on the size of the antes, there will be something like 40 or 41BB in the main pot, and you have to contribute 6.3, so in the main pot you need something like 15% equity to break even. If you actually have 52% equity, then you've got 37% of 40BB or about 15BB worth of EV from the main pot.

Of course, to realize that equity you have to risk money against UTG in the sidepot getting 1:1. That's not a problem in this case because you're actually a sizable favorite against his 9% of hands.

Let's assume, though, that you had a weaker hand like 77 that has just 40% equity against UTG's range. You each will put about 13BB into the sidepot, but you will have just 40% or about 10.4BB in equity. That means you are losing 2.6BB in the side pot.

That's OK, though, because you can think of that 2.6BB as the price you have to pay to realize that huge edge you have in the main pot.

So the bottom line is that given your assumptions about your opponent's ranges, folding QQ would be a disaster and even folding 77 would be a big mistake.

That said, I do think your range for BB is pretty far off. A 50% range would have him cold 4-bet shoving J7o with no fold equity. I'd put him on a much tighter range, but it should still be a call with QQ.