Actions have consequences.
you are analogizing apples and oranges.
Remember what the democrats did to Zell Miller for speaking at the Republican Convention? They ridiculed and raked him over the coals.
The speaker may give the most perfect conservative speech however that does not change the fact that the CPAC has become infested with homosexual activists and rinos.
Let's assume this true, (I am not privy to the level of infestation at CPAC by homo activists and RINOs), how does a speaker, let's say Michele Bachmann, lend any credibility to those infesting?
The fact is, Bachmann, Cain, et al are not falling over themselves to accommodate your, and others, views. So you throw a collective hissy fit and call them names, like "RINO".
What's next, taking a piece of chalk and printing mean things about them on the sidewalk?