Global GDP is $101T. Global yearly forex volume is $2738T. So by this logic you should conclude that 96% of transaction volume in the traditional financial system is also not tied to economically meaningful activities. You're going to be disappointed if you want to believe society as a whole is any less financialized than bitcoin.
What do you think would be an acceptable percentage of speculation?
https://www.compareforexbrokers.com/forex-trading/statistics...