If I don't let you resell something you bought that's ownership.

TIL people with organ transplants don't own the organs they bought.

TIL people with pacemakers don't own their hearts.

If I take something back that you bought, even if I give you a refund, that's not ownership.

so has steam ever taken games from users? I mean, I have games no longer offered through the store. hell, I bought game keys from Amazon for games that aren't sold in store anymore and added them to my steam library. so please tell me how I don't own my games by your definitions.

your only proof is from a decade ago and you clearly didn't read it. because if you had read it, you would have seen this little tidbit.