Venezuelans who come to the US tend to be wealthier, in order to be able to get here, and have enough issues with their country in order to leave, issues that they will usually blame on the leadership.
None of this is to say Maduro has majority support, he doesn’t by most accounts, or that they don’t represent a sizable chunk of Venezuelans who don’t like Maduro, but that his support isn’t as non-existent over there as it is here.
It’d be like if Trump took over the US and you only got your views on what Americans think from expat communities in Canada. They would probably cheer his death, even if it was by a foreign empire, but that wouldn’t be representative of average Americans who probably wouldn’t like the foreign intervention, even if they don’t like Trump.
In this case though, as much as I’d argue the US is violating the law and international balance in a way that I think could lead to some futures I don’t like, I still think its reasonable for a lot of individuals to want a leader that causes harm to no longer be the leader. It’s also pretty human to no longer care how that happens.
I’m ignorant on the ground but I’m not sure that focusing on the possible overgeneralisation is that productive. It kind of reminds me of early issues with ICE in the US: the right to defend yourself being removed is a problem regardless of if they’re a good or bad guy since the same logic can be applied to anyone. The good guy bad guy thing is very effective at motivating mobs though