Constructive dismissal isn't about whether it's legal or not to do it. It is, however, relevant to things like unemployment benefits—my wife, for instance, had

Constructive dismissal isn't about whether it's legal or not to do it. It is, however, relevant to things like unemployment benefits—my wife, for instance, had her job changed on her just as the lockdowns were beginning, to something she had already made it very clear she was adamantly unwilling to do (and this was a complete change in title, responsibilities, department, the whole works), and after she had been instrumental in some reports that were pretty critical of the administration and (indirectly) supportive of unionization. She quit, and had no trouble (at least, no more than usual) getting the state to agree she deserved unemployment.