USA sanctions means Venezuela can't be a Petrostate, that's it. There's nothing stopping the government from organizing state industries in agriculture and mineral extraction as well as distribution to build a hyper localized economy. Hell, they're supposed to be communists, this is supposed to be the whole thing they're meant to be doing anyway.
The state of Venezuela is mostly the fault of Maduro's failed governance, and some of the responsibility lays also on the heads of Venezuelans. I personally believe to pretend it's all America's fault is to engage in a prejudice of low expectations.
I don't belittle what VE has gone thru and I accept that something awful for you has been removed from the board.
Past that I would clarify that the current US leadership has little/no history of taking actions that are genuinely for others' welfare. The admin continually claims it is doing good. It's a continual stream, one after the other. By the time one is debunked (and they are), ten more are issued.
This method is dividing many Americans (by design) between those who believe the stream of claims and those being overwhelmed by the mountain of debunked falsehoods.