They don’t really care about the jobs that will be lost.
Check it out:

A new poll shows that the wealthy and politically well-connected favor the sharp immigration increases that are included in pending House and Senate bills.

The immigration increases are opposed by the majority of lower-income and middle-income voters, by political moderates and conservatives, according to the new Rasmussen poll of 1,000 likely voters. Almost half of African-Americans oppose the increases.

“The idea of importing millions of additional people to compete with American workers in the middle class is politically absurd,” said Mark Krikorian, director of the Center for Immigration Studies. Voters “aren’t stupid and they understand what the [immigration] proposals are designed to do.”