Why is Mike Huckabee accused of trying to fracture the so-called Republican coalition, but Giuliani, Romney, & McCain aren't?
Social Conservatives' values are ignored by Giuliani, belittled by McCain, and pandered to by Romney.
When less than desirable candidates from a social conservative perspective are nominated (Bush '92 & Dole '96 spring immediately to mind), values voters are told that we have an obligation to support the Republican Party because the Democrats are much worse. That may be true, but it's no less fracturing than Huckabee would be in asking fiscal conservatives to come along for the ride this year. In fact, I believe that fiscal conservatives have far less to fear from Huckabee than social conservatives would have to fear from Rudy, John, or Mitt.
After all, Huckabee is the only candidate proposing to completely do away with Corporate Income Taxes.
And personal income taxes, and estate taxes, gift taxes, social security taxes, medicare taxes, self-employment taxes, and capital gains taxes.