In 30 years America will regret and curse the H1-B visa program and unfettered immigration

An invasion is an invasion whether it be illegal or "legal".

It and other abused visa programs are going to be the death knell for American culture.
It is going to result in an eventual white minority and the continued election of extreme radical leftists. It is already occurring where these "immigrants" have settled. Minnesota, Michigan, California, New York, etc.
In 30 years or less you won't recognize the country. The country that you grew up in will no longer exist.
These "immigrants do not assimilate and do not share American values. They do not share the same principles. They take jobs and opportunities from true Americans. They are not here because they want to be Americans. They are here because of economics and self benefit. They don't give a damn about this country. Millions of them actually hate this nation and it's founding principles.
Corporate greed is driving this just as it drove offshoring of American jobs and factories.

Pat Buchanan warned us about this 30-40 years ago. The man was 100% correct.

If the millions are that are already here are not removed this country needs an immediate 100% moratorium on all immigration.

Mass unfettered immigration from alien cultures is going to be what kills this nation. This is the greatest threat that this nation faces. It is ripping the cultural fabric out of this country. This is what binds a people together. Shared and common values. We are living among millions that do not share the same values or principles. This is like an alien disease or agent that has been injected into one's body. That results in division and eventually the death of the host.

Demographics is Destiny.