Again, protectionism. If a billion people in India and a billion people in China are competing in global markets, my country's culture isn't going to survive anyway. How is Ottoman culture doing these days? Honestly, how is the British culture of even a century ago doing these days? How long did the Japanese culture so carefully preserved survive Matthew Perry's arrival?
(Also as it happens I'm an American-born child of Indian immigrants, so I am actually a carrier of American culture and not Indian, so I have reason to question the implicit assumption that immigrants will destroy culture.)
You're a carrier of American culture (at least in some superficial way) because you grew up surrounded by Americans. If 500 million people moved here, they would not grow up surrounded by Americans.
Well, okay, but there are multiple times 500 million people living in other countries growing up extremely not surrounding by Americans, and they are preparing to quash America's culture entirely in 100-200 years through economic dominance. Do you prefer that outcome?
If you dig in, a lot of cultures have roots going back centuries. People might be wearing tshirts and jeans everywhere you go, but the way they handle family matters and daily routines is very different.
You're a superficial carrier of American culture. Sure you speak English and consume American media, but you have socialist values which are not American. This is the land of the free, not the land of government-enforced equity and insanely high marginal taxes for the rich. Let me guess, you're anti 2nd amendment? If there were more people who thought like you in America, the country would indeed collapse in on itself.
No, I'm pro-Second Amendment. Probably more strongly than you: I believe the original purpose of the Second Amendment was to maintain a continuous threat of violent revolution against the government, not to let people hunt deer or whatever, and as a result I believe that the people have a right to own weapons sufficient to win a war against their own government—either by letting the people have a nuclear deterrent, or by disarming the government to the point of having no weapons the people can't have.
Not sure what that has to do with anything, though.
(Also as it happens I'm an American-born child of Indian immigrants, so I am actually a carrier of American culture and not Indian, so I have reason to question the implicit assumption that immigrants will destroy culture.)