What is happening here is that several posters who make up the right wing - perhaps even the radical right wing - are simply following the conservative marching orders to attempt to eliminate any discussion of race or racism in America. In doing this they charge the other side with the same sins theyare trying to pretend are not their own. They are taught that the best defense is a obnoxious offense.
I have seen it so many times on this board from the usual predicatable suspects that i could write the darn posts for them.
Some very wise poster hit it on the head: the right wing set this up so they could have it both ways and criticize Obama no matter what he did. For three years all we hear is the same tired old whine from the same tired old whiners ... "release the long form birth certificate". This despite a perfectly legal document which solves the matter. So now, because they have been such a major pain in the ass to the country, the White House does give them what they want.
So now what it is the whine: "Obama is Turmp's bitch".
I am tempted to say that anyone who follows that sort of hateful line has lost the last shred of their credibility and integrity. Sadly,in many cases, they had none to lose.