Slavery is hardly new, novel or confined to a single group of people. Slavery has been pretty common through out human history. So much so that we have archeological evidence of it back to Sumer. The real answer to someone bringing up slavery in other contexts is, “so what?” Yes, some native American tribes had slaves, that does not less the impact that slavery had on African people kidnapped and dragged to the Americas as slaves. Nor does it lessen the impact that a century of discrimination has wrought on Black Americans.
Honestly, it sounds like you have fallen into the Myth of the Noble Savage. Humans suck, we have always sucked, and that has been true across cultures. Every once in a while, we figure out how to suck less. But that tends to be rare, fragile and fleeting. Also, it’s often a lie and we just hide our suckage.









Don’t worry so much about sports, as finding something you enjoy which gets you moving. The important thing is to try stuff and find something that works for you. Really, the best exercise you can do, is one you will actually do. It sounds like you have issues with team sports, so maybe try some stuff which doesn’t involve other people. Also, accept that you will likely suck as whatever you do, if you keep practicing, you might find you suck less over time.
I’m not a “sports person”. In fact, I suck as most sports I have tried. But, I discovered that I enjoy indoor sport climbing. I sucked amazingly bad at it when I first started. I mostly climb top rope and was struggling to finish a 5.9 climb. But, I kept at it and now I can finish most 5.10a climbs on my first attempt. I’m not some super climber by any means, but I have become kinda competent. I enjoy the challenge and have met some great people along the way. I also get excited when I walk into the gym and see a new set of routes. It’s like being handed a new set of puzzles to solve.