So far, every fiat currency in the world is inflationary. It will always decrease in value overtime in the long run. Its a guaranteed loss !
Whenever you sell bitcoin, you are buying a fiat currency; making sure you will lose in the long run
TLDR: JUST HODL BTC
Inflation is always relative to something else. If you simply had BTC and never used it then the price would never matter, you have to be comparing its price to something. Realistically most people at some point will want to spend the value they have in BTC, the easiest way to do this is to convert it to FIAT.