The resurgent claim that the modern economy was built on slavery is yet another attempt to attack capitalism while also claiming "we are all to blame" for slavery. The slave owners of old tried a very similar tactic.
In 1986, eight governors threatened to veto deployments of state troops to Central America. Washington generals and politicians responded by further destroying state independence and the Second Amendment's militia clause.
The US dollar came to rule the world in the wake of two world wars. But back then, the dollar's hegemony was based on a solid foundation of savings and capital accumulation. But today, the dollar's growth is based on huge piles of debt.