Earlier quoted context omitted.
"Forcing"? Is there actual force involved, or is it just more speech?
If you are at work in an open floor plan just trying to do your job while some of your co-workers are carrying on about whatever, you are pretty much forced to have to listen to it. You are now no longer achieving 100% of what you could be doing because your brain is distracted. That's before you even attempt to participate.
Why focus on political speech when it's really any non-work speech that's distracting and should be banned?
But we all know that's impossible to enforce, and we've developed unfortunate but necessary coping mechanisms, like noise-canceling headphones.
Or maybe, y'know, just give up on the open-office concept, which has always been a productivity destroyer. I imagine post-COVID office spaces will be much more conducive to quiet and productivity.