There is no passive income in Bitcoin holding. Bitcoin does not stake unless the holder join a staking program offered by a third-party entity, so don't mistake Bitcoin for those altcoins that have a PoS feature.
The price calculation looks good and very enticing, reminds me of a Ponzi scheme profit calculator. Bitcoin is not a single line uptrend. The Bitcoin market is a roller coaster where it surges and dips with its own time of pace.
The profit we got from selling Bitcoin is a capital gain, not passive income.
If you consider profit from investment is part of your income, Bitcoin can bring passive income. It is a term and can be used depexently on each person's view. I don't think it is too important to have an agreement on which term is correct, which term is inaccurate.
If you sell your holdings, that is not passive income, and Bitcoin profit is realized when it is sold. I also believe that there is a need to know the right term to differentiate between two different things. Otherwise, people will be confused.