Altcoins will always remain dead. Majority of them just make false promises and give you all kinds of false expectations to put money in their pockets. Although I must admit ALTCOINS will never actually be dead because they will be used for pump and dumps. If you are lucky and quick enough to jump on a trend then you can make BANK with Altcoins.
The issue we have here is that all coins/tokens apart from Bitcoin are generalised as altcoins, people now add bad with good. But bad ones are not the same as the good ones as the names and characteristics that some preserve and possess respectively are unique. I do not see the trait that Bitcoin has that Ethereum doesn't have when it comes to the preservation of its quality and quantity. A few others also exist as well that during the huge fall of the last bearish season that made Bitcoin hit almost $15,000 from $69,000, they didn't fall that much. A good example of such is Tron (TRX) and many more like that which will even prove themselves better in the coming years.
This is what I will stand upon to debunk that altcoins are dead, they aren't dead and they will never be dead. Altcoins are only to be careful of, we do not just choose them anyhow, and the ones we choose, it must be well-studied so that as they give us that huge money during the bull run year(s), we take the opportunity and do not let ourselves be caught in the web of the bearish season that could see most of our asset depreciated before our eyes.