I don’t know about the intentions of the democrats but basically bitcoin endangers the current financial systems.
There are just too few fiat/paper dollars collected by crypto-exchanges and stable coin issuers to match or cover the market cap of bitcoin -> 20+ mil. bitcoins multiplies by $30–40k USDx .
Pension funds and large companies which did invest in bitcoin can find tens or hundreds of millions of dollars evaporated.
For details please check this article -
The danger in the stable coins (thought experiments and the real price of Bitcoin)