Eve though you framed your challenge as a "no true Scotsman" argument, history is packed with IPOs that tanked after the companies went public.
https://money.howstuffworks.com/10-biggest-ipo-flops.htm
Last year Uber dropped considerably when it's IPO got out of the gate.
The main mistake of your argument is trying to compare something with tangible value with schemes driven by speculation and fear of missing out.