What happened with tulips wasn't quite as simple as people think.
>At least they didn’t destroy the environment.
Not a fan of Doge, but they piggyback on LTC mining to a large extent so probably less of an effect. Plenty of other crypto doesn't do PoW at all. Really the environmental impact is becoming more and more just Bitcoin's problem not crypto in general.
>Most crypto claims to be deflationary
Doge isn't, it's famously quite inflationary.
>There’s not enough liquidity for all the donkeys to get their money back let alone for all the “innovators” to cash out.
Yes, it's important for people to understand liquidity in relation to market cap, but this isn't just an issue for crypto. You can't sell all of a stock without the price crashing either.