You're angry. I understand. No one likes having services taken away.
I work with Russians. I see accounts getting cut off or threatened to be cut off. But none of the firms are saying "we'll stop providing services to Russians". They are saying "we'll stop doing business in the Russian economy". Russian citizens are still very much using Figma, for example. But not in Russia, through Russian companies, using Russian credit cards. Conversely, non-Russian immigrants in Russia are also cut off. Ukrainians working in Russia are getting cut off.
The reason is the sanctions and the difficulty of complying with them. It's way easier to implement via geofencing, or by denying Russian-registered payment cards, than by checking users and companies against the ever-changing sanctions lists manually. And yes, many companies are horrified by the war and want to do something about it. Maybe something more than the sanctions require.
The purpose is to punish the Russian state and curtail its finance of the war. It doesn't really matter if Vasya Designer from Voronezh curses Putin and the war over tea at the dining room table every day. Putin doesn't care what Vasya thinks. So long as he keeps working, making money, paying his taxes, he contributes to the economy. His inner feelings do not affect the war. Even if there are many like him, it's unclear how they will change policy. 15 years, torture stories, and footage of crackdowns from Minsk to Almaty are pretty scary. They keep Putin from having to care what Vasya thinks, or how many think like him.
I know good people in Russia who can't leave and won't leave. It makes me sad, too, seeing them cut off, isolated, worried about money and their children. But it's the news from Ukraine that makes me truly angry.