The linked 5-minute video provides a simple and undeniable proof that the real value of Bitcoin is zero. It does that by showing that Bitcoin lacks the fundamental feature for which all financial instruments exist in the first place, and that is to provide payment to their holders.
https://youtu.be/WSYTXmxPveYI don't need to watch the video. I just need to look at the price of Bitcoin right now. It says Bitcoin is price valued at $9,405.65. That is enough to debunk any claim that Bitcoin's real value is zero. The real value of a few thousand bills in my country is probably worth less than a couple cups of rice. And yet, because of the value we assign to those small cuts of paper, we can actually buy a sack of rice with them. Every value is assigned.