This 7 minutes interview on NPR nicely summarizes the main points and conflicts in free speech today, all being considered upon the death of Charlie Kirk.
https://www.npr.org/2025/09/17/nx-s1...e-kirks-legacy
As for people losing their jobs for showing whatever degree of approval about Kirk’s assassination, sure, that is “cancel culture” according to my view.
That doesn’t mean an employer has no right to “cancel “their employees’ public speech that affects the employer.