We can do nothing less than demand impeachment proceedings against the president, and begin to remove from office those senators and congressmen that support this.
America is already 1/3 foreign born. You add the 60 million or so illegals and their families and suddenly the demographics of this country are changed so that native born citizens are the in the minority, the people who should be preserving our American culture of liberty will become insignificant in numbers.
70% of the immigrant population growth in the US comes from illegal aliens.