Getting people to buy worthless things from you is a phenomenal business.
Price and value are not the same. Ponzi schemes require buy in but still have no underlying value.
Also lol at crypto markets being liquid. In stablecoins maybe. Liquidity literally means volume has very limited effects on the price of an underlying. $100 or $5000 tomorrow is definitionally illiquid
Regarding liquidity, that's not really contradictory to the definition. That's only if I meaningfully impact the price by selling, so I would have to personally cause the change to $100 or $5000 for it to be considered illiquid. If Alphabet goes down or up 50% because of a bad report it doesn't make Alphabet illiquid.
What have you had issues buying or selling on Uni or Sushi?