Citing the NY Post? please. You seem to be able to do better than that.
Rittenhouse was a vigilante, he protected zero property, he's a disturbed, little fucker who beats on girls and thinks he's a tough guy.
Of course the North's economy was built on slavery, at least partially. Where do you think that picked cotton was shipped to and made into textiles? And where were the banks that loaned the plantations and slave ship owners money?
Two quotes from different sources:
"Looking at the institution of slavery as “just a southern thing” obscures the conscious interdependency connected by slavery between people’s wealth and power in the North and South."
"Nor is it clear to what extent Elihu Yale profited directly from involvement in either the Indian or Atlantic slave trades."
And yes, change open carry laws and change stand your ground laws and change citizen arrest laws, too.