People are deliberately misrepresenting arguments.
The argument "against" RT is that it is too performance heavy at this point in time.
But in order to dismiss this fact, the blind supporters of RT & nVidia are pretending that if you believe that the performance hit is too big right now, you somehow do not believe that RT looks better, or you don't believe that it is the future, you do not believe it is game changing, or that you hate nVidia. And that couldn't be further from the truth.
Those things are not mutually exclusive at all. You can perfectly believe that the RT performance hit is not worth it right now, even if it looks better, and at the same time believe that in the future it will be a good feature for both developers and gamers.
But that does not somehow justify focusing primarily on RT for your current graphics card purchase. By the time RT becomes mainstream, they will be too slow anyway. It's as simple as that.