While pacifism is a noble ideology, unfortunately, I don't see a way to stop Russian terror other than fighting it. And after all the misery and grief they brought to my country, I have a strong belief that they must be stopped. Russia started an unprovoked, full-scale invasion. Their army murders, rapes and is mugging people. They destroy entire cities, and their missile targets include civilian objects and objects of infrastructure. There is nothing sane or reasonable in that. This is pure madness.
And the Ukrainian army is not an aggressor here but a defender. Donating to support Ukraine's efforts helps to ensure that they have the necessary resources to protect innocent lives and maintain stability.
I spoke with a lot of people who fled from the Russian invasion to my, more safe, city. I don't want this here and I'm thankful to all of those who keep Russians away.
P.S. I could send you some links to articles with detailed information about Russian atrocities in Butcha, for example, but instead, I'll send you this 3-minute Imagine Dragons video.
Sorry for such a long comment.