This would apply to those trends that gone short-lived but I think Dogecoin will not die down that easily, it's one of the true decentralized coin that still exist today alongside with Bitcoin. For a trader perspective his conviction could be mocked but for those investors alike that thinks long term I'm sure he would be hailed as a legend. It's all about perspective and I think he knows the risks involved. Just my two cents.
I agree with you, we used to ridicule Dogecoin as a shitcoin, a farce, without value, but what it has achieved today is something we cannot deny. I believe that it will even survive and grow even without Elon because it has existed for a long time and always had a strong community supporting it before Elon used it as a tool to hype. Honestly, if we compare the safety level except bitcoin and ethereum, I even believe that Doge will be safer than BNB, XRP or any other altcoin.
We don't know how much hype it will get in the next bull season but it will never die even if Elon stops toying with it.
Dogecoin has already established its community so I don't think it will easily become a shitcoin knowing it has been the most profitable crypto coin way back then. Not because Elon has completely influenced and hyped Dogecoin, but because the long term investors have seen it coming that Dogecoin has something to hold onto that they don't get to see and experienced from other crypto coin. It's like Dogecoin becomes the biggest competitor of bitcoin when it was still on top of the market.