As a conservative, I am profoundly alienated by the "Republican"* party, as its primary mission is less about advancing a conservative political philosophy, to say nothing of contending for the moral principles foundational to the American republic, than ensuring the advantages of the most financially privileged among us. Its "conservatism" is to oppose proposals brought by the other government-sanctioned political party, but not to engage in any serious way with the issues of the day.
Some conservatives have more hope than I that American "conservatives" can mature past histrionics aimed primarily at winning the next election to engage constructively with today's social and political realities. Such a noble effort is R.R. Reno's The Triumph of Capitalism, which summarizes the true political crisis of our time thusly:
I want to be clear: The triumph of economic freedom is a good thing. It’s made possible a global economy that has lifted and promises to continue lifting hundreds of millions of people out of poverty. But that’s only part of the story. If American conservatism is unwilling to face the fact that economic freedom creates social and therefore political problems—political problems that will require in one way or another limiting economic freedom—it will be irrelevant to our age.
*"Republican" in quotes because I think a party thus named should be working towards the restoration of the republic, as construed by the United States Constitution, rather than expanding the imperial powers of emperors they happen to like. But I'm funny like that.