Those that define themselves as "True" Conservatives are indeed a minority. They are the ones that have a moral opinion and believe that everyone should bow to their opinions. They would rather get nothing than to compromise and get something.
But there are a lot of us "Mostly" Conservatives. We (actually, I'm speaking for myself here) believe in conservative government spending, but we also believe in providing a safety net for the sick, the injured and the unfortunate. That does not include the lazy or those that choose not to be a productive citizen.
We believe that it is better to compromise so that both sides get something (win-win) rather than to stand firm, like a mule so that both sides lose.
We don't think the USA should be the world's police, but we do believe in helping people that need help. That includes victims of groups like ISIS and Boko Haram.
We think that the US should maintain a standing army that can defend us against all aggressors.
We do believe in American exceptionalism. We are fortunate to live in a vast country with vast natural resources, and we have a Constitution that allows our citizens to display that exceptionalism.
And we do believe in the Constitution. It is not a "living breathing evolving" document, but parts of it were written somewhat vague on purpose. And even where the document is specific, it was often the result of a compromise. The founders didn't all agree on every part of it. They realized that if they didn't make some compromises, they would never produce a final copy.
We do believe that the Federal Government has certain responsibilities, but we believe that the Federal Government has usurped more responsibility and power than was intended, or that is productive. The Federal government has become a behemoth that is holding us back more than it is helping.
And we believe in paying taxes. But we believe that the TEA party was just a little mistaken. We are not "taxed enough already"; we are taxed (at the Federal Level) way too much. We should cut our Federal taxes deeply, but expect that our State and Local taxes may increase (if the States and Cities decide that is what they want). If my State or City becomes to burdensome, then I can move and still stay in this great country.
And finally, we also believe that we need laws and regulations. But we need them to keep some people from preying on other people. We don't need regulations to try to manage our every day living and our every day business practices.
Call me a RINO if you wish. I call myself a Republican because the choices are limited. But I don't think that you have to agree with every plank in the Republican party to be a part of the party. That is why "True Conservatives" appear to be such a tiny minority.
Sorry, but I'm going to have to pick some nits on this post.
First, very little of what you said is inconsistent with what I would call Conservative.
I suspect you have gotten caught up with the derision foisted upon Conservatives and the Tea Party movement by liberals, an example of which responded favorably to your assertion that "True" Conservatives are a small (and presumably dying) minority.
As for A "True" Conservative, that is an undefined term. I would call a True Conservative to be a Constitutional Conservative, and again, your take on the Constitution is the Conservative one.
As for the Tea Party, I take it you weren't really involved in the movement. I was, from the start. The Tea Party is for a smaller, limited, Constitutional government. Smaller means, yes, living within your means, and starving the beast. That means less taxes, but by no means was that the sole focus of the movement.
As for compromise, I think nothing in the Constitution can be compromised. That includes the Separation of Powers, the Bill of Rights, and the rest of it. If you want to change it, the Judiciary has no right to do so. There are two ways to change it, and those ways are included in the document. That's it.
Beyond that, the "no compromise" argument against "True" Conservatives is a canard.