Yes I agree it's cool that it can be carried around easily but so can the other cryptocurrencies. I would argue it's not really an FU to governments when it's being integrated into their systems and people are paying taxes on it now though.
I probably wouldn't go the other crypto for carrying it around just because bitcoin is the biggest, most famous, and most traded afaik. They can only tax what they know about 😉. Although, I believe in some ways governments integrating it makes bitcoin a better store of value than it was. It's more popular and number of fiat you can get for it keeps going up when institutions buy up big.
The government does know about the vast majority of it, most people who have bitcoin give their identity to an exchange so they can buy bitcoin.
The meme "there is no second best" is not some fancy bullshit to degrade other projects, it just to know that there is no necessity to have other units of measure for time/energy, it is really just noise to have many things that have the same purpose. So it is important to take the one that at the base is the most reliable, an then build on top. Would be interested to know why you think having others "crypto" is useful
Because Bitcoin is slow, Bitcoin transactions are expensive and Bitcoin is transparent and not everyone wants to use it. I believe in a free market and that includes when it comes to money. I don't like the idea of "we have established bitcoin so just follow us and shut up" (which is the mentality of a huge percentage of bitcoiners) I don't like the idea of layer 2's because the further you remove yourself from the base currency the easier it is to control.
Also the meme "there is no second best" just seems to discredit other options. It's a marketing tactic.