I did forget one thing that still falls under free speech (even legally probably), aside from the state not stopping you from expressing your opinion, it should protect your ability to do so. As in, not allowing anyone to silence you, but even that has its boundaries since silencing someone is not the same as not perpetuating what they say.

The examples you gave are ones where the effect on that person's life would be so fundamental that it could easily be considered an intrusion into their rights.

Boycotting a company or choosing to end a business partnership are completely different in that regard.