Why do Gov: often provide assistance to business to EXPORT?

Answer 1

Export create American jobs.

Any time you have a product made here by American workers, and somebody wants to spend yen or euros or whatever on it, you are adding money and jobs to our economy.

It helps the overall trade balance. Right now we import more than we export, so we have a lot of wealth leaving the US and going into foreign economies. The more we export, the richer, as a country, we are.

Would you rather these companies sent their factories overseas or closed outright? I don't see why you have a problem with this.