The entire economy of our country would collapse in on it self over time.
The union employee's only work as hard as they are directed to by the union BA or as they determine at the place of employment. The more work there is and the less competition there is the less work is performed under the guy lines, that no one is going to get rich off our labor. If there were no non union compatition the greed would set in and before long there would be a stale mate of who could do the least amount. Before long no one would even show up for work and the hierarchy would vote in a raise for all of those who were not working. Etrician would take place and those who actually wanted to be productive members of society would leave, and the countries that were able to produce goods for a competitive price would gain ground and consume the market.
Oh wait, that is happening already.