Stop immigration as a mean of increasing population and keeping wages down.
Sure, it is immigration that is keeping the wages down... I have no idea which country you originate from, but immigration is probably necessary to keep your population balance in check. So they are not the reason that wages are down; that would be the few determining the wages and exploiting you and those immigrants together.
I don't believe immigration is necessary for a countries survival.
Maybe fore increasing GDP but not for sustaining high standard of living. There is plenty of fat in the system and a lot of it is taken up by lack of affordable housing. Which immigration does not help with.
It's basic supply and demand if there are less workers wages have to go up.
Affordable housing is not a problem caused by migrants but by landlords who inflate the prices and governments and companies who delay the constructions so prices rise even more.
Look at many of America's top companies and you'll see they are run by immigrants. There is a huge demand for skilled labor in America and there aren't nearly enough skilled Americans. If you stop immigration these skilled workers will immigrate to other wealthy countries and build world class industries there instead and outcompete the United States. Immigrants are by far one of America's most important assets.