Not possible.. Dollar will always be there. If dollar will collapse, everyone will collapse. The internet will collapse, bitcoin will collapse, all establishment will collapse.
Internet will not collapse if the Dollar collapse and the establishment always end up collapsing only to be replaced by an other establishment
You know there is a world outside the USA out there and they are smarter, work harder, save more and produce more than the states?
The overall economic output of the US is greater then anywhere else in the world. The same is true for economic output on a per capita basis. The dollar has enough influence to prevent itself from falling by the wayside.
If the dollar were to collapse the internet and bitcoin may not collapse however the world would likely have very big problems on it's hands