Fraud is very real, but let me count the reasons why chargebacks rarely matter:
1. They don't matter for unapproved charges and renewals because crypto doesn't allow charges at all.
2. They don't matter for buying from large sites like Amazon, Ebay, Google, etc. because these large sites will quickly freeze a user's account completely if a chargeback is introduced. Most orders these days go through the large sites.
3. Chargebacks filed with Visa/MC (not Amex) require substantial evidence and follow-up for them to succeed. They are not easy. The time spent on retrieving the money back is hardly worth it for someone with a full-time job.