Russian pacifists want Russia to stop invading Ukraine.
Western "pacifists" want to send NATO tanks to Ukraine.
They are not the same.
Russian anti-war activists have a correct position.
But an important consideration should be whether one's actions actually contribute to Russia withdrawing sooner, or if they instead help justify further, equally self-interested NATO involvement in the war.
Unless you are Russian, it's most likely the latter.
There are two imperialist blocs involved in the conflict, and it doesn't matter which one of them technically started it.
I literally said that
Are you aware that it's possible to want neither NATO tanks nor Russian tanks in Ukraine?
You can even make sure you are consistent with both things in action 100% of the time - it's a neat little trick called "opposing the position of your own government".