You don't even need to perform a 51% attack on Monero. Since it's a black box, anything goes. If you cannot audit the blockchain, then you have a problem, since you cannot guarantee that nobody is exploiting an unfixed bug, such as, inflating the supply, double spending, or anything in between. This is the double edged sword of anonymity and fungibility.
You are either:
- Uneducated on how Monero works
- Spitting lies about Monero
Just because it's not transparent (by default) doesn't mean you can't audit it - It's cryptography allows to check supply without sacrificing privacy.
I know, It's hard to understand for uneducated people.
