Monero is the only real cryptocurrency.
Monero has since many years been the only option worthy of truly being called a cryptocurrency. Doesn't even make sense to use anything where anyone can see all the value in your private wallet and where you are spending them.
The rest should really be designated as "virtual coins" or just call them "casino coins" because that is their use case.
You might be confusing monero with all the virtual "coins" out there.