We do? What's your definition of free speech that people in the US actually adhere to? There are plenty of things you can't say that will cause people to not associate with you, block you, not hire you, not do business with you, refuse you service, ban you from community spaces and events, and at the margins lay you out flat.
As a litmus test the number of physical spaces I could theoretically carry around or display a confederate flag is basically limited to inside my house and public sidewalks. As soon as you step into somewhere privately owned people will absolutely kick you out for it.
You have cultural freedom of speech inasmuch as regular citizens can't use violence in the way the state does but literally every other consequence that can be imposed by private citizens is imposed for speech.
As a litmus test the number of physical spaces I could theoretically carry around or display a confederate flag is basically limited to inside my house and public sidewalks. As soon as you step into somewhere privately owned people will absolutely kick you out for it.
You have cultural freedom of speech inasmuch as regular citizens can't use violence in the way the state does but literally every other consequence that can be imposed by private citizens is imposed for speech.