A lot of altcoins are already dead without showing it, Dash is one of them. These projects didn't really bring anything that was both innovative and useful to the cryptocurrency world. So all they had was pump and dumps. I'd say Dash had some innovative ideas but at the end of the day it didn't really have any useful utility to keep it alive. So what it experienced over the past years was some pumpers pumping it for a little while before it gets dumped again and is forgotten until the next pump, each of which are getting smaller...
I respectfully disagree with your assessment of Dash being “dead.” While it's true many altcoins have struggled to maintain relevance, Dash still has a strong use case as a digital cash system with real-world adoption. Its focus on fast, low-cost transactions and privacy remains innovative and useful, especially in regions like Venezuela, where Dash is actively used for everyday transactions. Price fluctuations are common across cryptocurrencies, but utility and adoption in solving real-world problems are what truly define a project's sustainability—and Dash still holds value in that regard.
I am a Venezuelan, living in Venezuela and I would like to give you my perspective from the situation with Dash here. It is true that Dash was quite relevant a few years ago when inflation was rampant and costa of goods could double in a week, but unfortunately for Dash holders and investors here in this country Dash has been mostly displaced by USDT (Tron) and the payment system implemented by Binance (Binance Pay).
Since opening an account on Binance is relatively easy, what people do is use USDT and do not get exposition to the market fluctuations. Most people here do not want to speculate anyways, they want to save and guard their money against devaluation.
So, in my opinion, Dash has currently lost most of its market here in favor of a centralized solution which is Binance.