Idea is like it's the most used of everybody and every project had a consensus that they should be dependent on it. What we see with these projects is they always try to take over the past and established ones. Not knowingly, most of them are just the same and that's why an ideal altcoin is the one that unites all of these altcoins. But this is just like a projection and idealistic thought that seem to be impossible to happen.
Eg :
1. Security
2. Decentralization
All of them will declare that they are secured, they're decentralized and every other stuff that looks intriguing yet interesting to the ears of everybody. But all of them just plain the same.