I don't think you read my comment. I mentioned this exact thing.
The 3/5 vote was part of how the North protected from the South using greater numbers (voting in place of their slaves) to remove the expiration date that the North placed on slavery as a concession.
The North wanted to ensure that slaves would in fact be released as soon as possible, without losing the South as an ally against the impending invasion from England.
Had they not reduced the voting ability of the South, the South would have simply removed that expiration date and kept their slaves. (They kept them anyway, that's why the civil war happened.)
There are a lot of excuses being made to dispute the fact that this country literally has slavery built into its founding documents and let Jim Crow laws stand in a part of the country for almost a century later.
There was no “expiration date” in the constitution.
“Plessy vs Ferguson” was decided by the US Supreme Court after the Civil War which enshrined Jim Crow and “Separate but Equal”.
It wasn’t until 1967 that the Supreme Court outlawed bans on interracial marriage.
In 1985 there were still sundown towns (https://www.reddit.com/r/Georgia/comments/1f4hzlt/oprah_visi...).
This country was built on racism and it was enshrined into law up to 6 years before I was born
In all fairness, my family had a house built here in 2016 and the only reason we sold in 2024 was to move to Florida. While my (stepson) was one of only 5 Black students in his high school, he never had any issues.