This statement is incorrect, particularly the bolded part. BitCoins have value to some people and the reason for that is inconsequential. Whether they value it as a collectable, for alltruistic reasons, philisophical reasons, religious reasons or predicted future value reasons is of no consequence as shown here:
https://forum.freecapitalists.org/t/what-is-industrial-demand-in-misess-regression-theorem/18606
BitCoins do not have to have value in direct exchange to you, they only have to have value in direct exchange to one person as shown here:
I do not value gold in direct exchange. It has 0 direct value to me. That does not mean I am unwilling or unable to use it as a medium of exchange.