As for what you have left you are right it is nothing, however, you can say the same thing about EVERY coin, AND FIAT. Without support from real people all coins are left with is really a jerk-off kids tech toy.
Not true, not all coins are just some generic clones - some coins are working on advanced features like cutting down blockchain bloat, anonymity, exchange integration with creating trust through things like smart contracts, also building platforms for easier feature implementation and creating things like autonomous companies.
Doge has none of these things and possibly never will. For lack of better terminology, dogecoin, bitcoin, litecoin is all old / first gen crypto.