Dollars taken by force or threat of force. Regulations that are enforced by force or threat of force. Subsidies that are paid as quid pro quo for votes/support - not 'freely given' to anyone - (it's ludicrous that one has to point this out to you, but again, expected)... that are offered to some groups but not others - iow, inequality before the law. And all of this affects that actual free market - it can stop people (us) from purchasing in the legal market what we want. It can stop vendors to sell those things. It can force vendors to sell altered goods. There's nothing about it that even smells of 'free exchange'.
An analogy by your definition would be a crook with a gun, asks for your money and so according to your definition - you have a 'free choice'. You can give them your money or your life - and then you say, whatever the result - that was
your choice. There is no 'choice' at the end of a gun, only force - which is what you and your side advocate - while wearing a peace sign or Che on your t-shirts.