Many companies IPO'd in the late 1990s and did not exist 10 years later.
Let's say that the house of cards crashes down and takes the market with it who will shutdown, survive or have no choice but to get acquired for a 90% discount.
Some will be just alive long enough for the early investors to pull out enough before the market crashes.
Not really comparable. An IPO in the 90s is equivalent to a Series C or Series D round today.
And who will be the Amazon and grow 2500x over the next 30 years?
Now, I'm not saying that's going to happen -- but if you take analogies from the dot-com era and assume they're going to play out in the same way, you can't just cherry-pick the bad ones.