I mean it seems like poor people of color are the biggest targets of the Republicans but I certainly don't disagree that they are targeting anyone poor regardless of race.
A coworker of mine said that while paying her credit card bill for the last four weeks, she saw all over the bank website "Are you a federal employee on furlough?" so I'd guess one effect of the shutdown is that at least some federal employees are getting by on payday loans.
I think there's an awful lot you're missing behind the racism.
Now I don't mean to minimize the racism, or the very real harm it does to a very large number of people.
That said, the racism isn't the end. The racism is a means to the end. The end is the extermination of the American middle class. The end is the Final Solution for the extermination of the American Dream. The end is to take all of those working families who have a decent standard of living and reduce them to poverty.
And most of those people are white.
The Republican Party today does not have a policy which does not, in whole or in part, exist for the purpose of lowering the standard of living of people who work for a living, and their families, and transferring that money to Wall St. When asked why he robbed banks, Willie Sutton replied, “I rob banks because that's where the money is.” Republicans rob the, mostly white, American middle class, because that's where the money is. You just can't steal enough from the poor to make it really worthwhile.
But they need to use the poor, and they need to use minorities, as a way to misdirect attention from their real activities. Now the poor and minorities take a lot of damage in the process. But that's a lot more in the way of collateral damage than targeted damage.