You are right on saying that. However, I think that although crypto might not be a good alternative to fiat and such payment methods, the decentralization is very much needed in the modern world as institutions and businesses are making the wealthy wealthier and poor poorer by their manipulative techniques. Every pros come with cons, it's just how we manage to milk out from it.
It is quite true that regulation is what restricts people to do what they want in their own way, but I've known allot of people getting rich without considering the fact that they save their money to banks, in the first place banks will really help you to safely store your money, incase that the bank get's robbed, they have the option to still give the money of the people back because they are backed by the government. decentralization on the other hand will grant complete ownership of bitcoin and crypto, thus, taking the opportunity of regaining back the funds if it lost.
How will someone get you it funds? You can't Rob a bitcoin address like your u can with a bank. A bank is physical and a waste of space. Who told you that stolen funds will be given back? If you have your money stolen the banks not going to replace it. Only if it's their fault. If you get hacked or your money is stolen some how like you held up at an ATM then guess what? Tough luck that's life. Do you honestly think the bank will replace stolen money? That means criminals would generate infinite funding without ever effecting the balance of anyone's account but the value of the currency will go down. Oh and I know you talking about banks being h ld of up and robbed what a useless and stupid argument. Bitcoin has no bank your u are the bank.