Preflop there is no way I would fold the second best hand possible. And there are a lot more hands, even speculative that I would only fold to an all in. However, to multiple all ins I wouldn't even fold those.
In satellite i folded even aa
Not only will I not fold KK, but I will also play with 10 10, there was a case in a tournament, I personally saw how the player folded pocket 10 10 and then very much, regretted it, as the river dropped a ten and then from this hand he was eliminated , but could have entered the final table and won at least $ 300, there was a major 10K tournament for the first place.
I almost folded pocket kings preflop yesterday in the BetOnline platinum freeroll.
Of course we were on the bubble, 16 players left and 15 get paid. If someone who had a bigger stack than me shoved, I would have folded preflop because there were many players who had smaller stacks than me and I didn't want to make such a huge error.
Thankfully, none of the big stacks shoved, and I was able to call the shove of a very short-stacked player who pushed all in from the button, I was in the small blind and snap called. He had J7o, there was a jack on the flop and the turn was a 7, so I lost the hand. LOL.