Who Set off Mass Immigration?

John Kennedy, and Ronald Reagan. Back in the days of 90%+ top tax rates, it made sense for even the upper classes to mow their own lawns rather than work a little longer at the office. After taxes were lowered, it made more sense to stay at the office and pay somebody else. There was the minor problem that the somebody else would frequently have their own careers. The upper classes could have paid more but it would have been a waste to have more educated people mowing lawns and cleaning houses. The obvious solution was mass immigration.