“This is a shove according to the shove chart with no action pre”
… but there was action pre 😉 CO shoved.
It depends on how wide this villain could do that… I have no problem with the fold with the stack you had.
Just for fun, I calculated KQo vs a ss open-shoving range. I gave him 22+ A2s+ A2o+, K7s+, Q7s+, J7s+, K9o+, Q8o+, J9o+ and a few suited (or offsuit) connectors (that’s top 38% of hands)
and you’re basically flipping (51.5/48.5)
I use the mobile app Poker Cruncher (like a pokerstove for phone)