you're wrong

They should assimilate, learn the language, honor local traditions, or get out. Flying their flag, speaking their native language, and observing their old traditions will be taken as an affront and build resentment. And rightly so. 
I certainly resent those very same actions in Mexicans in the US, and consider them disrespectful. You want to retire to Mexico? Great. Become a citizen, and accept that your old culture now needs to be replaced with the Mexican culture.

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