Fiat is manipulated by governments/banks to control & have power. Whales heavily manipulate crypto. By switching to crypto, isn't it just handing the control & power from governments/banks to a small group of wealthy whales?
Both fiat and crypto have their own benefits towards the users of it.
Yes we know that fiat is being manipulated by the central banks for a long time already but we can't do anything about it because all of the establishments right now are accepting fiat as a mode of payment. There is nothing we can do but to continue to use it. It will just depend on how the user uses fiat currency.
With regards to crypto, yes it is heavily manipulated right now too by the whales but as the total market cap of crypto market increases the chances of it being manipulated will slowly decrease too as the coin will be distributed to more investors.
Overall, both are manipulated right now for me and I can't answer that question as they have both pros and cons.