You mentioned many other injustices but none of those are "slavery but just different with slightly more rights."
Human nature didn't change, it is still power hungry, small percentage of narcissistic people want to control the masses and exploit, give them a chance (I mean to current capitalists), you will become a slave.
Look at the Elon and what he did to X employees, some were sleeping in the office "proudly", who still got laid off anyways, look at the Bezos, who fought against forming unions. So you think those people are different then slave owners? deep inside they are same, power and capital hungry, ready to do anything to get more powerful (see any big tech corporate, blood bath of politics at the top to fight for staffing and stack ranking to show "impact")