Republican Voter Suppression!

[quasarvs]

My short thoughts:
Granted, perhaps that notion is true in "some" cases about minorities not feeling welcome in the Republican party, but just because they are the minority and that there are less of them in the party does not mean they are not welcome. Please don't let that confuse the question.

With regard to police laws in Arizona, I would assume you are thinking of the hispanic minority "primarily" in this case... these laws are only designed to protect all of the public in the best way the authorities know how. Illegal immigration is a crime and should be punished. It causes devastating damage to both parties involved:

For the U.S., it causes economic damage, unfair job competition, tax evasion etc. tax money wasted
people and private property (two of the most sacred rights in the Constitution) are put at risk
communicable disease risks

For illegal entrants: it cheapens the American experience, they will never feel that they can fully breathe the free air
and they may never actually care about what freedom, justice and peace are really about or worth, because
it didn't cost them anything.
It doesn't allow them to stand-up and fight against tyranny for their homes & families in their home country, instead of running away. They miss out in participating in a potentially powerful and somewhat miraculous revolution in their own nations.