> I don't pay interest so I'm not contributing to [their profits]...

That's true, but by accruing rewards, you are indirectly incentivising the CC company to increase interest rates to subsidize your usage. If every single CC user didn't carry a balance, there would be no rewards (see Europe).

I think we ended up at a better place here at the end so I will end with the last point.

When I was 17-19 year old, I had a small credit card with a $3k limit. I never hit this limit and it was never a problem on my path to financial freedom and I largely paid off the balance in full every month. My spouse and I were debt free by 26yo after paying off $75k in student loans. My aversion to consumer debt has little to do with my own experience and more to do with how I see it affecting my friends and family and American society more broadly. We put speed limits on roads to protect people from themselves. I'm only advocating for similar guardrails as it pertains to credit cards and other high interest consumer debt.

Especially after moving abroad, I just don't see the point in a system that is built on top of so much debt. It only hurts the most vulnerable people in society while funnelling money back to people who probably don't need it, imo.