Bitcoin market cap: $8.3 billion
Uber the taxi app: $18+ billion
Is it just me, or something is wrong with this picture
As it has been explained on numerous occasions already, Bitcoin market cap as well as the whole cryptomarket cap is meaningless and useless for comparison with assets of a different nature. In simple terms, you are trying to compare incomparable things just because they happen to be measured in the same dollars and seemingly represent the same thing. But they are not even if it is the same dollars (though these are not the same dollars anyway).
Simply put, cryptomarket cap is fake as it doesn't reflect real number of coins traded. Technically, to get a correct assessment of the cryptomarket cap you should take into account only the coins that actually get traded or circulated. If you were able to do that (you can't), you would quickly find out that the figure thus obtained would be a tiny fraction of what you are being led to believe as Bitcoin or any other coin market cap.