I am well aware of the reasons Lula has affinity/empathy for Maduro. I'm also against US imperialism, and I can see through the propaganda since I remember, as a kid, and of course my criticism grew wiser with the years.
I don't get the point you're trying to make.
Why don't you argue with the refugiados how Maduro is great and a victim of the US.
Maduro isn't exacly tankable by most of the left anywhere, including here in Brazil.
Screw him, really.