When republicans say immigrants should be grateful for being americans, why should they not complain of republicans being racist towards them?

Why is it that republicans want immigrants to just take whatever abuse the police and immigration give them, why is the republicans response to minorities being treated with abuse is to go back to where they came from, why don't republicans go back to their lilly white hometown so they are not reminded of all the minorities who want the government to function how it is supposed to function or is it supposed to only serve white people?

When republicans say immigrants should be grateful for being americans, why should they not complain of republicans being racist towards them?
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