Historically, US immigration policy limited rejection and deportation to those deemed to be either criminals or incapable of supporting themselves economically. The modern quota system takes a far more arbitrary approach.
Business owners understand that the key to prosperity is to reduce costs and deliver more goods to the customer. Wage workers, however, often want higher prices in order to "protect" their jobs.
Since the Tariff Act of 1789, the tariff has been the playground of special interests, and used as a means of rewarding political friends, and harming political enemies.
