It will be wrong if you generalized these criteria on all alt coins. Not all altcoins must obey the third criteria you mentioned. Although I will align more with you when you popularize this with memecoins like the $TRUMP & $MELANIA memecoins than just generalizing it on all altcoins. What will you then do with strong altcoins like the Solana and Ethereum coins. While all memecoins are known as altcoins, it will be improper to regard or assume all altcoins as memecoins.
Hitherto, I won't advise any newbie or amateur in investment to put their capitals on any altcoin without doing a proper investigation of the market trajectory of such coin and as for the memecoins, it's a total gambling for me, so it will remain a no go area of investment for me. Historically, memecoins have been regarded as pump and dump projects, so there's no need going through such risks when you have your history note.
To me every Alt is like TRUMP or MELANIA coin. There is not even a single alt in the market that is decentralzied and secure like Bitcoin. There are news coming in everyday about alts that some alt collapsed in price or bug is detected in blockchain of another alts. For this reason I never pay any attention to alts no matter how catchy they are. Let's just focus on Bitcoin and ignore rest of all alts or we can imagine that there in only Bitcoin in the market nothing else. Bitcoin has a community and a price pattern which help you define your investment strategy. For you Ethereum is strong but for me that thing with unlimited supply of coin is just a crap.