Should the Republican Party open its tent so wide that we allow in Communists?
Of course not, since Communism is radically opposed to the market economics the Republican Party stands for?
Why then should the Republicans welcome in sodomites who oppose the traditional values the Republican Party stands for.
People vote for people who stand for something, not a mishmash that stands for nothing except counting votes.
Your straw man is burning. Communist would have no interest in the Republican Party so your hypothesis is moot. That is, unless they intended to enter it through stealth in order to eventually transform it. In that case you would not know they were Communists.
As far as the Sodomites, they are going to vote for someone so why not for our values rather than the left's? Must all Republicans be as pure as Caesar's wife? I'll bet there are many differences among freepers but we share enough common values to interact and support each other in those values. There are probably even (shudder) Sodomites among us.