The bottom line is you want isolation with your big hands. When your UTG+1 and UTG raises, you want to reraise to isolate. I have no problem with any strategy that sees only one or two others in a hand where you have KK. Drawing hands are called drawing hands because their monetary expectation goes up with more people in. That's just not the case with KK, AA, QQ. We play these hands a certain way because it's mathematically correct to do so. These are not drawing hands because they lose more with more people in. It's just a fact.