I agree with the concept of open borders. We are all earthlings we should all go wherever the fuck we want. However we'd have to deal with all the racism, sexism, homophobia and religion before we can get rid of borders.
@hushed I also don't like the idea of them bringing over the culture. Whoever it is. Some cultures are just cancer so we'd need to just destroy culture as a whole. Every single one. Make a new one that includes all humans no matter of which race they belong to.
If they are willing to become a U.S citizen, then there's nothing wrong, but sometimes they just come into the country and use us. Not all illegal immigrants are bad, but its too risky and tbh, we need to stop letting people live in our country and spend all of our tax dollars on them when they aren't doing anything purposeful