All my savings are currently in BTC and all I can safe in future will go into BTC as well.
As much as I agree with your sentiments regarding the flaws of the fiat banking system, keeping
all your funds in BTC or other crypto is a bad idea. You say you don't care if the price goes to 1 cent. If
all your money is in BTC, I'd bet you would care quite a lot if you lost >99.999% of your net worth. Regardless of how "real" your 1 cent is, that's not going to pay your rent or buy your food.
it`s enough if I will be able to operate with it for every single purchase and for all of my needs.
Again, as much as I would like this to be the case, it simply isn't at the moment and won't be any time soon. As much as I would like to only use crypto, we have to use fiat for bills, food, gas, etc. Keeping a healthy exposure to crypto and various fiat investments is necessary for a secure future.
I agree with you, my market price has no important issues. HODL, until the right time, we sell good prices. I think that is the best way I do now.