They didn’t subsidize Northern shipping as you have been claiming. They subsidized 3 shipping companies who either carried mail or were considered to be important for national defense. And they didn’t create any monopolies as you claimed.
Almost forgot to reply to this.
So what happened to that 10 million they put into subsidizing the Baltic's company? Did it end up in the water with no one getting any value for it, or did it employ sailors, carpenters, mechanics, banks, and all the support structure for that company and other companies?
That 10 million went into the Northern infrastructure in both people and equipment.
Did the South get a 10 million dollar cash dump during that same period?