I will tell you for free that every altcoins is design in one way or the other to sort for funds from the public. This is the mechanism put in place to make you believe it will yield positive result at the end.
Maybe not all altcoins are very fraudulent. I cannot really beat my chest and say that Eth and Sol are fraudulent, although there is a sort of centralization in the way it is propagated using Proof of stake and not a more decentralized proof of work. Some altcoins are still fraudulent but the most scams occur in meme coins which are least stable and are created after a trend and without a strong foundation. most meme coins created has been rugged almost immediately and you don't need to be surprised because it takes practically almost nothing to create a new token on an existing blockchain with
the most I've seen recently created on the Solana blockchain. Now you can
create a new token without having much technical knowledge.