Villian #1 (BB) has been playing rather abc, have no read when he donks.
Villian #2 (UTG) is a fish. Limps wide range, but I have never seen him shove.
I have both players covered.

400/800/100
Utg (Villian #2) limps
Hero with JJ (spade, clubs) (with 50 bigs) raise 3,200
All folded to the big blind (Villian #1) he calls.
Utg calls.

Flop is 3h, 4d, 6h
Pot 10,000

BB bets 3,000
UTG shoves 20,000

So what's the question?

BB is on a flush draw with two overcards some significant amount of the time. You're essentially flipping against those hands. Donk bet by an ABC player on this board screams strong so I'm thinking two big hearts is the best scenario for you. There will be sets.

UTG has sets, lots of draws, and occasionally the dreaded 75s. It seems really unlikely he's bluffing with no draws in this spot so maybe if you're lucky he's pushing an inferior over pair because he doesn't understand ....

Is it a reentry tournament? What is the stack size for the BB? Is the BB defending wide? This information would be helpful.

Based on your descriptions of the players, it sounds like you can pick a better spot later on.

im allin here

With such a wet board someone could have 5x, hearts or a smaller overpair.

Only thing we really worried about is a set, don't think either v would have 2p on the this board very often, sometimes maybe the loose fish but we would still have outs against it if it were the case

Yeah jam
Utg range include 6x or dominated pair often as well as BB w/ small donk.

What's the BB's stack?

If the effective stack is 25BB, with the SPR we may be committed to getting it in with an overpair. Not having the Jh seems somewhat relevant, and it's very reasonable our opponents can have 77-TT, flush draws, and maybe TPTK or pair+straight draw hands here a large portion of the time. I'm not saying I love the spot or anything, but I think if we're folding J without the Jh for 25BB effective we're overfolding.

The BB has 30 BB's behind after he donks, and he is defending wide.

You keep saying he's defending wide but he's also donking after defending wide so his range is much narrower than "defending wide."

defending wide = rangeBB x

defending wide + donk betting = rangeBB x-y

defending wide + donk betting + shove from guy who never shoves = (rangeBB x-y) + rangeUTG really strong if he's paying attention at all

You are up against strength from at least one player and likely two players.

That said, you might have enough equity to call, though I think you're ~20% here (there are times when you're all but dead at -3%). You're heading to the cage to rebuy far more often than not.

Others will differ but I would think that if you have an edge of the table, wait for a better spot. You can't win the tournament this early.

Donks have hands sometimes. It's a trap to think that just because someone is a bad player (or a maniac) that they never have it.

its a tarp