They'll just blacklist every single one of these sites for enabling access to illegal materials and you won't even be able to read EFF from Russia. And if a Russian citizen creates a public proxy, they'll convict him on anti-terrorist charges. That'll deter the rest.
I am not convinced that pushing Putin to exercise his dictatorial abilities is a good idea when his approval ratings among the general population are so high. I mean, if people already hated him, that might have pushed them over the edge. But as it stands now, general population is more likely to rationalize blocking than admit that Putin is evil.
> "They'll just blacklist every single one of these sites..."
That's the point: pressure. Outside sites willing to expose themselves to an 'iron curtain' is a true form of solidarity in this era where a world is more connected. Push-back is exactly how successful, peaceful movements are waged.