The Right Wing Supreme Court

So, Elena Kagan will probably get on the Supreme Court soon. She would follow recent Obama nominee Sonia "Wise Latina" Sotomayor, who got on last year, in the midst of a ridiculous nomination process. Lots of people, especially on the left, are applauding these picks. Both are women, both are moderate, and both will make it through the nomination process - it'd be shocking if Kagan didn't get through. However, there's a big problem here. I know, you have to pick your battles, but...do people realize that moderates will not save the Supreme Court? Because justices are appointed for life, every nomination is a big deal...so if the court is drifting far to the right, it should be worth the battle to make sure it moves back to the center (something I suspect most Americans would actually want). Appointing moderates will not do that.