Since when weren’t you supposed to not prioritize profit over literally anything else under this organization of the economy? Streamers are allowed to ban anybody they want for whatever reason. Stop crying about it. If you don’t want to lose chat privileges, respect their boundaries.
Bans by default have always only stopped you from chatting, not from viewing. You need to turn that on manually in Settings, and most do not. She even said that she's not sure if you can turn it on. Spend your time crying about it, or go watch someone else.