A Violation of Exodus 23:9

Israel's Finance Minister wants a crackdown on illegal workers:

Finance Minister Yuval Steinitz recently instructed ministry officials to develop a comprehensive plan for deporting 100,000 illegal foreign workers from Israel within a year.

"What's going on is an outrage," said Steinitz at a meeting a few hours prior to the Passover Seder. "There are a 100,000 people taking jobs illegally while Israelis remain unemployed. The plan must involve painful economic sanctions on those who employ illegal workers."

On the other hand, this looks like a violation of Exodus 23:9:

You shall not oppress a stranger, since you yourselves know the feelings of a stranger, for you also were strangers in the land of Egypt.

It's also a violation of economics to assume that sending customers away is harmless.