That's not true, it doesn't even really make sense. Freedom of anything is freedom from consequences for it. If I say I believe in freedom to have an abortion, noone would reasonably be said to agree if they said they also believe in freedom to have an abortion, and then immediate execution by the state afterwards.
Freedom of speech in the constitution is freedom from reprisal by the government
Freedom of speech as used idiomatically in speech generally means a certain level of freedom of reprisals from employers and society.
Directed racial slurs is a straw man, almost noone believes in absolutist freedom of speech when it comes to directed harrassment, they normally believe in freedom to discuss topics in the abstract.
It's not a monarchy if someone has the freedom to speak, that doesn't make them a king just a citizen.
I've noticed a trend with the woke side of the debate to get into like high-school level semantics - redefining words or misinterpreting statements in a nakedly disingenuous way - does anyone understand why this seems to be a trend?