I do agree salvation is through faith alone. But will a Christian produce this kind of fruit??
There is a difference between political liberalism that is outright in favor of gross immorality, and political liberalism that believes that gross immorality should be tolerated because God alone is Judge. I don't think the former could call themselves 'good' Christians, but surely the latter's politics is not so immoral as to negate any true faith its proponents may hold.
Os Guinness has a good essay about this in his book The Call: in essence, he says that it is as much a sin to make absolute what God has left relative as it is to make relative what God has made absolute. The Bible doesn't espouse a particular political system, so we shouldn't make it an article of faith that one must adhere to a particular political philosophy in order to be saved.
There is no "Christ and"--no "Christ and conservative," nor "Christ and liberal."
There MUST be some Protestant denominations that consider those three horrors as Satan's very own evil as Catholics do?