As the trading day marked the debut of Bitcoin (CRYPTO: BTC) ETFs, Senator Elizabeth Warren (D-Mass.), took a stand against the Securities and Exchange Commission (SEC) approving BTC ETF. What Happened: She said, “The [US Securities and Exchange Commission] is wrong on the law and wrong on the policy with respect to the Bitcoin ETF decision.” Warren’s response followed a milestone move by the SEC that saw the green-lighting of 11 new spot Bitcoin ETFs the previous day, generating upward of $4 billion in trading volume within their inaugural session. Amidst substantial trading activity, Warren …