We're not even close to "all" territory.
> The requirements changing for a job they may have had for decades is also a legitimate reason to be upset.
People are fired all the time because their job requirements changed, or they were made redundant. Where have the mass protests been for that?
> Let's not pretend there aren't legitimate concerns here.
Some concerns are legitimate, other's are not. But occupying the nation's capitol, and assaulting people who wear masks are not a legitimate avenue to express those concerns.