so any business which accept crypto must KYC every one of their customers
No, any business must use a KYC custodian for their wallets. I don't think they'll need to KYC their customers, they'll just need to account for those transactions in their accounting.
So if the company accepts Monero, the Monero wallet would need to be with a custodian, but you'd be free to use Monero to buy stuff and remain anonymous. At least that's my read.