If you mean he opens preflop to 10x BB then yes in 99.999% of situations.
Agreed. The only way I wouldn't is if I'd played a lot of
hands with a guy and seen that he only did it with AA. And only if I suspected they didn't know I know they did it.
There was a player on FT NL$10 awhile back who would supermultitable all day long and fold every hand unless they had AA or KK, then raise all-in. They didn't get called often, but every time they did they showed down one of those two hands. It was surprisingly profitable (even got me a few times when I had AK suited and hadn't learned my lesson yet).
Against someone like that, whom I had seen many times at the table and had a clear MO they would never vary from, I would have folded KK because that meant they either had the other two kings or AA, and the AA was much more likely.
That is the *only* time I would have ever folded it, and even then I would have thought hard and may not have had the discipline. Other than a picture-perfect read of AA, which you will have .0000000001% of the time, you don't go away with KK.