You might want to read a bit more closely before declaring war. As a number of (but apparently not enough) replies have indicated, this proposal concerns legal permanent residents — not those who are in this country illegally.
The police should be citizens.
Period.
What the blurb doesn’t explain, is that other jurisdictions who have enacted this policy have become “sanctuary cities” for illegal immigrants. Chicago is a good example. IOW, immigration law goes out the window.
The other danger that I see is well connected Mexican drug cartels placing their own people in law enforcement. That’s just one danger of improper employee vetting.