Exactly, it's not about policy, it's not about party, it's about attention grabbing by attacking an individual who looms large on the political stage, kind of like a political version of 'Look at meeee!'. Much of the coverage of the Healthcare Bill has been focussed on Obamas struggle to get backing, not only from Republicans, but from his own party, and in the end, it was they who put the Bill through, not Obama, he merely ratified it.
But attacking Democrats in general won't make the news, because that's what Republicans are supposed to do, just as Conservatives are supposed to attack Labour, so they have to make the attack personal purely to get screen-time, and that makes me wonder whether this is genuinely about concerns with the Bill, or whether it is simply about throwing the rattle out of the pram to get attention.
And I think that may be where the main difference between politics in the two countries differ, the UK resisted televised election debates for years, because of concerns that it would turn the political system into a kind of carnival show, where personalities were more important than policies, and I think the Tea-Party system is an excellent example of why it was resisted, the whole thing has turned into a lynch-mob for Obama, and it's spearheaded and organised by a News corporation... that is, to me, wrong on so many levels I cannot even count them.