Why is it that people don't realize that since bitcoin is usually measured in dollar
so inflation affect how we perceive it's price
There is a short explanation that I saw about Bitcoin prices and inflation, where we know about the differences, as outlined.
Bitcoin's Own Inflation: In contrast to fiat currencies (such as other currencies or the Dollar) whose money supply can be printed by the government, Bitcoin's supply is limited mathematically to only 21 million coins. Bitcoin's default inflation rate (emission of new coins) is currently around 1.8% per year and continues to decline.
In short, I can draw one conclusion, Bitcoin can be positioned as a hedge just like gold, where gold is also measured in dollars, but it still has a correlation in maintaining a hedge against fiat/dollar inflation in the long term, as wellinfluence on interest rates.