You repeat this mantra 'Control of information is a magical thing', but it doesn't become true just because you repeat it. USSR controlled the information far more tightly, yet, nobody believed the government and laughed at them -- I'm old enough to remember that. See, propaganda has a hard time competing with an empty fridge and empty stomach, and in the end, empty stomach prevails. People see quite clearly that living in Russia becomes harder every day, and of course they link it to the unchangeable leadership of the country. After 25 years, people are simply tired of Putin, so any claims that he has 80% approval rating are simply laughable.

Regarding your other point, no, 'Non-whites' are not really discriminated. In fact, Russians themselves are the most underrepresented ethnic group in all levels of power in Russia -- and it always has been that way. It was so in Russian Empire, in Soviet Union, and stays true in Putin's Russia as well. What you're referring to is the cargo-cult practice by some ppl who try to mimic modern Western political tactics. Many have noticed that claimed victimhood is beneficial in the modern-day West, so they try to emulate that by pretending to be a victim of some oppression -- that's where your stories originate from.