Southerners were upset with jays treaty because

Jay's Treaty gained British withdrawal of troops, granted payment for confiscated ships and opened trade to British West Indies; Democratic Republicans were upset because there was no agreement regarding impressment, no compensation for slaves angering the southerners, and no recognition of U.S. neutrality

americans had many intangible advantages. well since the british fought a war far from home military orders, troops, and supplies sometimes took months to reach their destinations, and the british had an extremely difficult objective. they had to persuade the americans to give up their claims of independence, americans had a grand cause: fighting for their rights, their independence and their liberty. this cause is much more just than waging a war to deny independence.

not sure but thinking i'ts cause the government was broke. not sure