Does the increasing control of the Ethereum market by major players pose a threat? If ETH's value is based on trading, how does large-scale accumulation without selling affect market behavior? Will this lead to ETH being solely a store of wealth? Could a mass sell-off by these entities crash the market for smaller investors? Is this a genuine concern?

JPMorgan Chase has frozen my account after I got $150 from someone I know to help cover some expenses. Now the bank is claiming suspicious activity, even though I provided the transaction history and gave my phone number. Now I can't pay my bills. I have no idea how much time an investigation will take. How can they freeze my account over a valid transfer? What should I do now?