I should know, I've lived here for 14 y years (and, no, I'm not 14 years old).
"Every batch of immigrants provide the fuel for growth and innovation."
So the people already in America are useless? As an immigrant I feel someone should have told me that my children will become sloths.
"Whatever might be the political climate but US is still the country to come if you want to make your dreams come true."
That's really little more than regurgitating a slogan.
Anyway, the duty of the American government is to Americans. My home country's government's duty is to me, and my duty to my home country's government (that's why I refuse to become American - I'm not ready to pledge the oath of allegiance against "foreign enemies" that might include my home country).
Or why are Americans the only people in the world not allowed to have a government and a State that looks out for their interests?
So? Is America's immigration system supposed to serve the interest of foreigners, or Americans?