Full stop?
Sorry, but there are millions of people who strongly disagree with your perspective, and the points they have to make are very fair ones indeed. You may not like them, and you may not agree with them. But saying the matter isn't even open for discussion? In a free country, censoring speech and debate in that fashion simply isn't you prerogative.
You say race signifies nothing meaningful and that all races should be treated the equally? Fine. Others say race is deeply connected to power, and because power has been distributed so unequally - and so unjustly - then any position that carefully (or furiously) evades this basic truth is a part of the problem, not the solution. That seems - at the very least - like a reasonable topic for discussion.
Of course, if we were working from a place where race was as irrelevant as eye color, and we were talking about introducing a class system based on race, then your "base no judgements on race" position would be an admirable defense of egalitarian values. But applied to a society where huge racial inequalities are the norm, the opposite is true. Given this reality, there's nothing admirable about policies that act as if those inequalities don't exist. Indeed, suddenly becoming "color blind" is one of the surest ways to ensure that injustice remains firmly entrenched.
To give you an ides of how ridiculous it sounds when people ignore such obvious inequalities, consider the absurdity and cruelty encapsulated in the remark that "The law, in all its majesty, prevents the rich and poor alike from sleeping under bridges."