When USA stole assets from Cuba and Venezuela, nobody minded. After they stole from Russia, everybody eyes opened.

Straw man fallacy. There are plenty of people who have been very concerned that both of those categories are weakening the foundations of the US-based financial system. It is likely to contribute to the migration away from the US petrodollar and the US dollar as the world reserve currency, thereby weakening all of the benefits we have because so many people use our currency.

Arguably, though, the US has been "stealing" (in the form of sanctions and frozen assets) from other countries going back more than a few decades, at least as far as Iran in 1979, so your timeline doesn't hold up.

"Stealing" is wordplay when it comes to Russia because they are at war and the things that are "stolen" are assets being frozen to help pay restitution for the war they started. And Russia would deny the oil stolen from their ships was theirs because the entire point of the "shadow fleet" is to obfuscate ownership, mix and match the fluid products, to create plausible deniability to avoid sanctions.