Earlier quoted context omitted.
Sure, he should just have lived as a slave and not socialize with anyone until he left. H1Bs have been used as a path to citizenship for a long time. You can't just change the rules like that without destroying so many lives in a senseless act of cruelty. But the cruelty is the point.
Is it not cruel to Americans to replace them with said slave labor through legislation? The people who built this prosperous modern nation that so many people wish to flock to for a better life are just kicked to the curb -- talk about cruel.
* America was built by immigrants.
* None of the Americans currently alive "built this prosperous nation". They were born into it.
* Welcoming immigrants won't "kick Americans to the curb".