There are dissenting voices in Russia, it's just really really hard for them to be expressed or emerge because of the way the country is:
https://www.theguardian.com/world/l...08c3a5e4daab39#block-6217774f8f08c3a5e4daab39
https://www.theguardian.com/world/l...08c3a5e4daab39#block-6217774f8f08c3a5e4daab39