Because people do not use Bitcoin for its purpose. I love pre-2017 Bitcoin when the price was low, transaction fees were almost non-existent, when there were no KYC requirements available, when you could mine Bitcoin at home even without a free electricity, when you could trade Bitcoin without a hassle. Today Bitcoin is a commercial business and almost everyone acquires it for this purpose, to make more money. People will send Bitcoin to bank account to earn interest on their Bitcoin deposits. Today people don't use Bitcoin to escape the bank but to make money, so this doesn't surprise me anymore.