ah yes all the innocent people suffering in russia when the other side is getting ripped apart by bombs. I understand where you are coming from, but it is incredibly hard to sanction only the people making the decisions and not affect the people of the country at all. There may be a way but it would've needed much more preparation than the current means.
Edit: also if you seriously think sanctions are worse than war you should consider Self Delete
it’s actually very easy and standard practice for civilized countries. international organizations or individual countries can leverage banks around the world to freeze funds from certain individuals or their families.
while this unfortunately doesn’t have the same effect of starving people, it prevents them from using this money for corrupt practices. the US did this with the ayatollah in 2018 or so and it was extremely effective, the vast amounts of illegal business the ayatollah directly finances was damaged
and yes, sanctions are worse than war. you as a citizen have no way of fighting back against sanctions except by attacking your own people. it’s deliberately cruel and deliberately a one-way battle