What are we a religion? Goodness.
People can:
Believe in Bitcoin, have most of their net worth in it, and still use some FIAT. Using FIAT doesn't make them not real Bitcoiners.
In the same ready that someone can be aware of how unhealthy most modern food is and work to improve the system while eating healthy the majority of the time, while they also eat the FIAT food sometimes.
I eat out occasionally, but most of my food I make at home. Last night we had prime brisket, last week we had burgers from a local food truck. Quit gatekeeping.