i believe with this statement you're taking it too far
as i already pointed out my mother tongue is Russian, i'm not treated as a second grade citizen, if I am it's not because I speak Russian, but because this is how normally ALL citizens are treated by the corrupt system, no matter what language they speak (and many to be honest can't speak properly neither)
so far I've submitted quite a few petitions written in Russian to different organizations and local government bodies, not a single one was rejected, they were responded to in Ukrainian as the law orders
if they were rejected that would constitute law violation
normally i don't listen to radio, if i happen to hear it it's only in the public transportation playing at the driver, almost all music playing on the radio when i hear it is in Russian, there's even a nation wide radiostation called Русское радио, which exclusively plays music in Russian
when the 'oranges' came to power lots of Ukrainian music started being played on the radio, but those days are long gone.
now ARE YOU treated as a second grade citizen because you speak Russian? please describe the incidents illustrating that statement