Help me understand pls!

Hey everyone, i hope some of you can help me being stuck in my mind.

Everywhere in this sub i can read that bitcoin is better than fiat money because it defends your storable wealth and cant be infalted by criminal leaders and centralised groups of people. I agree with that.

But i cant see where Bitcoin is so favorable against many many other equities. When i try to think it the easy way, im thinking of lets say:

15 btc ~ 390.000 $ today, so you could buy like a flat or something, or invest in diversified stocks

Today: 15 btc ~ 1 flat ~ xy number of etf shares ~ 390.000 $

In 15-20 years with 7 % Inflation: 15 btc ~ 1 flat ~ same xy numbers of etf shares ~ 1.230.000 $

So Infaltion is just fucking up your holdings in fiat but everything else is going up in price (not in value) on the same way btc is going.

An now, why should i not hold etf shares to own parts of the world economy? I dont care if i can sell these shares of the world economy in 20 years in USD, EUR or whatever money is used in the future. Because i just going to own fiat money in short periods of time where i need to do some transactions.

To this point i can see clearly the disadvantage of fiat against btc or other assets, but i cant really see the advantage of btc against owning producing shares of the economy (worldwide diversification). Im glad hearing your points at this one. cheers lads!

And pls dont call me on "when your living in Iraq you would be happy if...." because im not and even if i dont think politicans wanting the best for us, i do think, that there ist no point in the future without having an economy and bank accounts for normal living people like me.

Actual invested like 600 k $ in etf shares and a flat ~300 k with still 150 k credit with 2% interest rate till the end.

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