I think Jamie just wants to convince people that Bitcoin is the bad guy by speaking about it with zero knowledge in the domain.  And some people take Bitcoin price predictions by J P Morgan with no salt?  I would take them with a spoon full of it!

It only shows something about the ones who govern us.  Jamie Dimon included, because I really doubt he has nothing to do with how the world runs.  The elderly barely know how Bitcoin works yet they always comment on it.  The United States has Bitcoin laws governed by people who have only up to a decade left to live probably.  It really sucks!

Let the elder man be and stop giving him attention.  Jamie is never going to support the Currency that was created as a protective shield for the people against Banks.  It is like telling me Jeff Bezos would support their biggest competitor.  Never, unless they are in the same boat.