The problem is when people buy bitcoin to make profit and want to make it quickly! Bitcoin was never meant to be used that way, it is a currency that could appreciate over time but you should focus on it being a currency.
Don't you realize what a contradiction you are falling into? You defend that 1BTC is 1BTC despite the loss of purchasing power at the same time defending that it is a currency.
The tautology that 1BTC is a 1BTC is logical to defend if we see Bitcoin as an investment, as a financial asset, and not as a currency because precisely if it is a currency we are not going to HODL it for 30 years as the above image suggests:
By the way, in that image I miss those Bitcoin holders who die during those 30 years.
If Bitcoin is a currency, you are going to use it to buy things, and the fact is that months ago, assuming that for example buying a loaf of bread cost you $1 or its equivalent in Bitcoin, with 1BTC you would buy 69,000 loaves, and today you buy only 20,000, which is a considerable difference.
You have a sound argument but
1 BTC = 1 BTC is always
true1 BTC ≠ 1 BTC is always
false 1 xBTC ≠ 1yBTC where x and y is the price of bitcoin in a different timeline e.g. Bitcoin price in 2010 represented by
x and Bitcoin price in 2022 represented by
y, is
truethus, you need to present a price/time variable in the equation in order to prove your argument is true. Simply saying 1 BTC ≠ 1 BTC and raising argument of a price element in different time is kinda confusing. So I think you need to properly represent price in different time into the equation.
Thus, OP is right when he says that we lost nothing as long as we don't sell since 1 BTC is always equal to 1 BTC until we convert it to fiat and compare the price we buy them and the price we sell them and you can't use this
1 BTC ≠ 1 BTC equation because you need to add price/time variable to this.