There are methods for rewriting legacy systems. Articles like this make the job of improving systems more difficult by creating an impassable set of presuppositions among non-technical stakeholders.
At my company we’ve taken a stand against cancel culture. We do not believe that anyone should be compelled to sign away their freedoms as part of our working relationship. The right to free speech is just that—a RIGHT. There’s more than enough legal precedence to manage our workforce effectively.