Relative hand strength is important to keep in mind.
I thought I should add some math here:
Not a ton of info in the OP but let's say donk is shoving 55% of
hands. We're 47%-48% against that range.
If 55% seems too loose for "donk who always shoves," let's trim it back to something more reasonable, 45%. That would be roughly any pair, any ace, any suited king, K7o+, Q4s+, Q8o+, J8o+, J6s+, and some other connectors and suited crap.
We're 45% against this range with a ton of dead money in the pot. We're not in great chip shape and we're properly playing FTW, as OP stated.
Compare this situation to a nit shoving UTG and we have AKs on the CO. This is roughly the exact same situation
equity wise, but with worse pot odds and a much greater likelihood of someone waking up behind us with a hand that has us crushed, and I'm sure most/all of us would be happy shipping it in there.