If we compare the crypto assets market to the stocks markets in general, can Bitcoin be considerated as the equivalent of the dollar?
In the stock exchage we buy shares with dollars.
In the cryptocurrencies exchanges we buy tokens or coins with bitcoins(and other cryptocurrencies, Litecoins, etc).
yes it is true that you say, but the difference is if the stock market can not be accessed by the public and if cryptocurrencies can be accessed by the public, and this is where we have financial freedom.