In lots of ways, I agree with you. We should be able to present conservatism as an alternative, not just a lesser liberal approach. I'm with you there.
Here is where we depart: Sometimes it's clearly better to vote for muddled rather than something that approaches evil. I think that happens more in our world than not and we have to deal with it. I would prefer that not be true, in my ideal world it wouldn't be true.
Reagan said it something like this (And no, he's NOT a RINO): Don't let the perfect get in the way of the good.
But why does that only ever apply to the right? I'm not saying you're wrong necessarily, but something is obviously badly broken when we have to compromise to avoid disaster and they don't.