[Titus Quinctius Cincinnatus]

I don’t see the wisdom in removing McCain if it causes independents to step back from the GOP in the fall which Obama, the national Democrats, and the media will drive home if he does lose.

Depends on the kind of "independent" you're talking about. Remember, "Independents" aren't some sort of monolithic body of people. There's a reason they're "independents." The kind of Independents that McCain appeals to are not necessarily the kind of independents we WANT to appeal to, they're definitely not the kind of independents that the Tea Parties appeal to.

[Norman Bates]

The kind of Independents that McCain appeals to are not necessarily the kind of independents we WANT to appeal to

I can guarantee you that Scott Brown appealed to a larger swath of independents than your holier than thou approach would allow.