Just to add up to comments explaining why it won't work. I'm from Kazakhstan, but I'm more or less indistinguishable from Russian. Russians in Kazakhstan basically consume the same media Russia citizens do. So I can't even persuade my own relatives there that it is obvious we are bad guys right not. Not some random people, but my own mother believes TV more than me. Because it is easier to believe, it is almost impossible for us (anyone probably) that we became evil. And you can't change that by spam calls, you probably make it worse. People who can accept other opinions still have access to other sources, it is not (yet) N. Korea.
We need more protests and (sadly) more sanctions, preferably against individuals. And truth, not anti-propaganda. More coverage of current situation in cities, and less 'russian ship go f* yourself'