It's not a slippery slope if people are given access to resources, time on state owned TV stations, and hold positions of power they are part of Kremlin there are no alternative sources of power or resources.
In any case there is nothing state can do to please you: censoring specific types from accessing media is bad (and rest assured you would never know if they are ultra-right, libertarians or whoever they are from western media), allowing them is endorsing.