I do not listen to the radio pundit, you are referring to. And I do not want to be unfair. But the point is not really debatable. The Constitution absolutely calls for putting America First--see Trump: The Issue.
And who else in this year's campaigns, has clearly done so? The fact that he won the enthusiastic endorsement of Phyllis Schlafly, who sadly passed away, last week; attests the soundness of his Conservative credentials. Mrs. Schlafly has, since the Goldwater campaign, been the closest thing to a conscience for American Conservatism, as anyone could hope for.
Purist is someone exactly like Mark Levin. To get all Merriam Webster here, it's someone ideological at the expense of being practical, flexible, pragmatic. Needs a candidate to show an exaggerated preponderance of alignment with a person's own dogmatics(His love of Ted Cruz demonstrated this). One thing that can never be compromised is my faith in Jesus Christ, that is immutable and I'm a purist with that as we are told to be. Politicians I give a wider berth
Purism as Mark Levin has demonstrated and spoken about, is a religious like philosophical immutability to broad political slogans and theories. He literally worships at the altar of the mutterings of such 18th-century luminaries as De Tocqueville , Irishman Edmund Burke and some of our Founding Fathers. The Founding Fathers were brilliant no doubt, but unlike the Bible the Declaration of Ind and Constitution has logical holes, contradictions and omissions..as most human originated documents have. No term limits on Congress, no way to effectively and easily overrule the SC, slavery, etc. Being the best system of government ever still is not even in the same universe as a religious faith. It's still trying to perfect humanity, which is impossible. All we can do is mitigate the disaster that is human nature. Sorry Mark, if we could resurrect Reagan and had a super majority of Conservatives, I doubt this country would be near what you think it could be. American gets the government it deserves.