So the only justification I can come up with here is that Trump actually hit on the covid economy in a tangible way. The pandemic disproportionally affected minorities. So while we all might be preaching for shut downs, masks, regulations etc., many hispanics in working class communities can't afford shut downs. Trump yelling loudly to open the country signifies to them a sense of self-preservation of their own skin.
That's all I can think of. Any Trump support for non-Cuban hispanics isn't driven by immigration rhetoric, social values, or anything else.