The way He delivers the message is seemingly a Bias sentence and not literally the one that he really meant.
He wanted Dollar to become the world currency meaning that the competition is what brings him to this conclusions .
and with that meaning that Bitcoin is not really a scam but this just becomes a threat to US dollar.
I hate trump when he act like this because at one point i respected Him even that there are tons of against with him.
Haha well I on the other hand just love Trump,,, not so much as a person or a president of course but just the way he is and how he does,,, to be honest though almost every American president or hah any president of any country, if you dig enough you will hate them.
But to just see him do his thing, it is like a breath of fresh air, except of course when he encouraged hate and paranoia. That will be damaging to American society in long term.