Talking about irreversible transactions as if they're objectively bad is intellectually dishonest. Chargebacks are a real issue for many genuine sellers and crypto offers perfect protection for them. If you don't trust the seller then use alternative methods, but this type of transaction is for a niche that needs to be filled.
Yes, and cash is irreversible too. A large part of the world still runs on cash and it works just fine.
Chargeback rates vary a lot by country too so this is not as much of a problem everywhere. And with 3-D Secure authentication it's already much harder to get your money back.
