Surely Maduro is bad, but that doesn't mean the next phase won't be worse. Trump has never shown any interest in spreading democracy or human rights. I would not be surprised if the mission involved a side deal with someone in Maduro's inner circle to let them become the new dictator who is willing sell oil leases to the US and who will be as bad or worse to the Venezuelan populace. We have absolutely no idea what happens next and Trump has not given any indication of strategy beyond wanting oil.