One of the aspects that hurt the chances of slavery ending earlier in the US was the brutality of the Hatian slave revolt in the early 19th century. When stories got back to the US told by French refugees it scared hell out of everyone. This had a major influence on things here. Especially with the influx of possibly as many as 12,000 refugees in Philadelphia alone. It was the first real mass migrations to the fledgling United States.

Prior to the revolt, In some areas in North America, some slaves were experiencing small freedoms that had been unheard of before. Especially in Louisiana, west Florida, etc. The revolt put a big kabash on that with new restrictions. I’m in no way trying to promote slavery or any cause, just stating some facts. It was still slavery.

Founder
Ancient Order of the 1895 Winchester

"Come, shall we go and kill us venison?
And yet it irks me the poor dappled fools,
Being native burghers of this desert city,
Should in their own confines with forked heads
Have their round haunches gored."

WS