Based on my experience, "those people" actually believe(d) that the US government is literally paying every person south of the border vast sums of money to come live here. If I had a dollar for every variation of "if you're broke, travel to Mexico and cross the border back into the USA, they'll give you a free debit card" I'd literally be able to afford to fly to Mexico, cross back over into the USA, and then be disappointed that nobody's getting those magical debit cards conservatives are convinced are being handed out like candy. And I'm brown enough I'm sure I could be confused as being "Mexican".