cme volume is tiny, can you cite your claim? I have not heard anyone claim that before, given the majority of option volume is on cryptocurrency exchanges which are operating using usdt.

edit: here's the source I'm using to understand cme volume vs binance etc. https://www.theblockcrypto.com/data/crypto-markets/futures/v... which shows binance is the highest volume, which is usdt as seen here: https://www.binance.com/en/futures