Persuasive evidence of Republican incompetence at something

It is so because I say it is so, and it doesn't exist unless I acknowledge it.

This is the entire logic undergirding a WaPo op-ed from Matt Miller, an MSNBC contributor and a "senior fellow at the Center for American Progress" (i.e., a professional talking head who's financially supported by a Democratic think-tank)(bold-face mine):

The striking thing about the Republican National Convention was how all of the most powerful speeches invoked tales of ascent from humble circumstance....

....

Anyone listening to Rubio’s moving tale surely thought, “Yes! This is exactly what America is about!” But the stories were all we got. No Republican speakers offered any policies to renew upward mobility in the United States....

I've omitted a hyperlink from that quotation since it wasn't to an actual authority on anything, just a link to another WaPo op-ed from another paradigm of liberal intellectual honesty, this one a self-admitted plagiarist. That's how the WaPo does its fact-checking: "Do our liberals all agree? Then it's a fact."

Note the spectacular arrogance, the insufferable closed-mindedness. Here's what Miller's entire pitch amounts to: "I don't agree with your ideas regarding what the government can and should do (or can and should refrain from doing) in order to encourage people to dream and to work and to succeed. Therefore, your ideas simply don't exist. Your ideas aren't even policies, they aren't even ideas, and everything you propose — even something as specific and concrete as 'repeal Obamacare' — was never actually mentioned. Therefore I don't have to bother even making an argument about why your policies are wrong."

Here's the problem with Miller's approach, though: If the American tradition being lauded by all those minority speakers at the GOP convention — including the personal experience of America that was had by the families of Marco Rubio, Susana Martinez, Mia Love, Condi Rice, Ted Cruz, Artur Davis, Nikki Haley, Brian Sandoval, and others (Miller's list is awfully short and selective, wonder why that was?) — is so closed, so hostile to people on account of their race or their national origin, then how did all those non-white people become senators and governors and cabinet officers?

The only answer available, once you've bought into Miller's logic, is that the GOP are awfully incompetent racists. After all, if you permit a "token" to share and exercise real power, then by definition he or she is no longer a token.

Or: Perhaps we shouldn't buy into Miller's logic because he's a dishonest partisan hack who makes his living off of telling clever lies.