donald trump doesn't care where you're from or what colour you are or what language you speak. he's a ruthless, financial tyrant. if you check his business transactions, you'll no doubt see that people of all colours and nationalities are good enough to carry out deals with him.
what he's really doing is playing to a political agenda, and while it's something that gets whipped up by the rupert murdochs of the world as a distraction, the base he's playing to is actually poor whites with low levels of education and limited economic options. rather than blame that on people like donald trump, they blame it on "immigrants" - because that's what rupert murdoch and his cronies teach them.
the difficult part of the situation, though, is the reality that, on some level, they're actually right. you could look at the situation with seasonal farm workers in california, as one example. they make a lot of food, and it feeds a lot of people. even way up here in canada, most of the strawberries come to us from california for most of the year. and, the labour that picks these strawberries (and does most of the other work) is, in fact, mostly undocumented immigrant labour. the producers prefer this because it allows them to pay less than the minimum wage, and the politicians and law enforcement look the other way due to bribery. they won't hire year-round residents in these areas because of fear that they'll unionize, and because labour laws demand that they pay them a minimum salary. it goes well beyond that, though, with "temporary foreign worker" programs that reduce to renting slaves for a while and then sending them back.
the reality is that, in conjunction with outsourcing and mechanization, this actually has reached a level where you've got year-round residents (mostly white) that really can't find jobs, while the big producers are bringing in workers from outside of the country and paying them a fraction of what they're entitled to. and, when the media stands up and points the finger, it's easy to fall into the wrong narrative.
so, there is a pretty real problem that's a consequence of corruption and free trade. but, what's necessary, here, is to get the whole story across to people, so that they're blaming donald trump rather than migrant workers. and, while these slogans may make you feel nice, they don't really get anybody closer to understanding anything.