You are in legal la la land my friend. The Federal Trade Commission Act deals primarily with deceptive advertising. It absolutely does not prohibit a credit card company from restricting what can be purchased by their cards! Once again, try to fund your brokerage account with a credit card. Oh, do we need to sue every broker now as well? Good luck with all that. While you're at it, I heard the IRS is illegal under the 5th, 16th, and 17th ammendments, so no need to file your taxes either. Meanwhile, back on planet Earth....