Because if we can brainwash the people to believe that success comes from government then the power of government increases. We let them teach our children these lessons and then wonder why they vote for socialists.
Because those businesses will send jobs over to other countries and people like you will be the ones affected by it. Not only would you pay more and higher taxes, less products would come to America because of tariffs. People in other countries work for less money and don't complain about that fact. And finally, Americas economy will collapse because consumers are not buying things because businesses are not here, and do not send their products over.