The D&D reference was to illustrate that while good is against evil, it's a game and has no point or effect in reality. Similar to that of the purist conservative beating his chest that the "conservatives" we have in government are not good enough, therefore we should punish them - this has an effect; we are witnessing it now. I was merely saying that at some point, some practical decisions have to be made as in not voting for Democrats because the Republicans have ticked you off. If you don't understand that and stick to the notion of adherence to conservative ideals at all costs, then that's all you will have in the future -- ideals, because you certainly won't get a conservative Utopia by letting Dems get this foothold.
I know the point you're making, I've heard it many a million and one times. It's the doctrine of pragmatism over principle, aka, victory at any cost.
I simply don't subscribe to it. That doesn't mean I won't or don't compromise (I've already stated twice that I voted straight GOP in this election). It means there are limits to how much I'm willing to compromise. For example, I'll never vote for a candidate who adamantly supports partial birth abortion (Rudy Giuliani). On the other hand, I likely will support a candidate who has expressed pro-choice views at one time (Mitt Romney).
There's nothing pragmatic about abandoning everything you believe in for the sake of victory for any political party. I just don't believe in victory for the sake of victory, nor do I appreciate being scolded like a child by those who do.