Open Letter to Visa and Mastercard from IT Specialists Fleeing Russia 4 years ago
Protests never work under a dictatorship. See the Belarus experience and how much people was protesting. I believe that fleeing of IT guys will hurt Russian's economic more than being tortured in the jail.
Any possibilities of protest in Russia are suppressed. Putin has been doing this for decades. We don't have that much support. Visa/MS blocking affects ~1% of the population who want to flee.