LOL. I knew that would get your goat!
I disagree. That's only true if your entire gameplay is from the Sovereign Rule Book written by BB6 Kaysar and Edited by BB6 Janelle (with a foreword by BB7 Janelle). Yeah if all you can hope for is to win HOH, then yes absolutely keep your team in tact! For Jessie for example, this might be the only play he's capable of. But it's not true for everyone and it's not a gameplay that has EVER been successful on this show. Ever. In the history of Big Brother. Ever.
A good player can rely on their social play to not be nominated even if they're not HOH (and in fact, they won't WANT to be HOH). Consider Cerebellum Chick. She's playing a totally smart under the radar game right now. Do you think if Ronnie and Chima (is that
really her name??) were eliminated next, that she would even
be a target? Not likely. In fact their eliminations might even make her less of a target than she seems to be now because everyone will assume she has no allies due to her team's deccimation, and they will move on to splitting up the other groups (think about BB6 and how once you lost your partner you were given a pass to the front of the line, and no one targeted you until all the other teams were split up. That's partly how Janelle and Maggie got so far). And then she won't have two smart people (with Ronnie as a potential manipulator) later in the game to worry about. And I'm not even saying this is what she should or will do, I'm just using it as an example to refute your argument that keeping the teams together is inherently beneficial for everyone.
I know you hate him but facts are facts, and the fact is, Will caused bickering in BB2 and the infighting was so fierce between certain personalities that he was allowed to skate to the finals, and he wasn't even a serious target the many weeks he was nominated! I'm not saying this always works -- you have to be crafty at it after all -- and it's too early to tell if Ronnie is doing it in a way that's going to blow up in his face or blow a path wide open for him to the finals. I'm just saying it's not as cut and dry as you're presenting it (i.e. instigating infighting = bad).