That's a great point too. I cryptocurrencies deserve a classing system better than just "altcoin", "shitcoin", and "memecoin". There's not really an official or unofficial grading system other than these terms and vague terms like "utility token" that help to differentiate one cryptocurrency or token from another in terms of quality, which is a problem.
Here, I got you covered:

But to be more serious, 99% of the other coins would just be dumped into the "Shitcoins" category.
Pardon me, and I don't want to offend you, but it's actually so laughable that you included Ethereum in the second row together with Monero.

Ethereum deserves to be BELOW the third row with the other Proof Of Stake shitcoins in my opinion. If their developers didn't throw Proof Of Work out of the window, then MAYBE it deserves to be in the third row.
¯\_(ツ)_/¯