Someone explain this to me

[kurosh]

CO raises, button calls, SB calls (2/3 structure), why is it bad for me to call with 69o in the BB? How can this possibly be -EV for me? Real explanations please.

Also, apparently K4o is not a 3-betting hand from the SB? And not a defense hand from the BB vs a button raise? Come on. I guess I am a gigantic LAG compared to the rest of you.