"Is it possible to fight against totalitarian statists without ever compromising conservative 'principles?''"
This is an important and difficult question. (See also the related "Why Are Conservatives So Naïve That They Refuse to See the Beam in the Eye of Those Who Hate Their Very Existence?")
On the one hand, it's rational to proclaim: Sure, conservatives should "fight fair" and keep to our principles. That's what makes us better than the other side. But on the other hand, what if the stakes are very high and your opponents are awfully misinformed and misguided--0r just plain bad? I'm not sure what the right answer is.