But also 88+ or A10+ which leaves us dominated or flipping at best. For half our stack with no real reads and bb to act still I think it's a fold. We can wait.
And doesn't even need A10+ to be flipping -- it only takes any two cards eight or larger, which is a shitload of hands. In fact, it's almost guaranteed to be a flip, at best. Throw in the hands where villain has hero dominated, and it's an easy fold at this juncture - and that's without even taking the BB into consideration at all (which is a big mistake).
There a much better spots than this to put that much of our stack at risk. And the only way we could be exploited in the future by folding 77 now is if we are stupid enough to announce it. As far as anybody knows otherwise, we folded 83o.