The only crypto Marxist talking about free trade agreements anymore are Obama and a few throw backs on Free Republic
There's no such thing as being a little bit pregnant. All those tarriffs mount up.
The Tariff of Abominations (1828) and a flood of other tarriffs were brought in - all of them disproportionately benefiting the North and impoverishing the South. The Morrill Tariff was the last straw that broke the camel's back and forced the South to secede.
The ensuing Civil War - Lincoln's war of unification - killed over 690,000 Americans and was the greatest debacle in your nations history.
The Civil War wasn't caused by chattel slavery. It was caused by tariff slavery.