First there’s a key distinction you didn’t state. If I own the company I can decide who to hire and fire, within the law, on whatever criteria I choose. If I work for owners of a company I’m obligated to act in what I believe is their best long term financial interest unless they instruct me otherwise, though either way within the law. In the latter case it’s unethical for me to to act according to my own interests and opinions. And I’ll assume that case.
I’ve noticed in now two of your recent ethics scenario’s an African American was murdered by the police for no reason. Perhaps you feel this is a fairly routine type of tragedy but in fact it’s very rare statistically speaking and draws huge attention nowadays. This affects the scenario. If it was really as routine as you seem to perceive it, employers would have less implicit obligation to bear with its victims (loved ones). In reality in any kind of public company the relatives of a victim of such a rare tragedy would be off limits for firing for longer than 6 months, if they were making some kind of effort to cope.
In a company I worked for, a guy’s wife and kids were wiped out as pedestrians in a traffic accident. He became a complete zero after that, and nobody can cast blame per se who hasn’t had it happen to them. But they eventually had to get rid of him, with generous severance, which is another variable in such cases. Sooner or later you may have no choice, but if it was a national news type event it’s longer.
The other two cases are more real world common, employees with odious political/social opinions they (largely) don’t bring to work, or employees with ‘respectable’ political opinions, in their proper place, but which they bring to work and let interfere with their work. However the latter category is narrowing as society polarizes. Some people here would probably consider EMILY working on Republican causes at work to be the same as Sasha but just more open about it; others, not so much at this forum, consider BLM a racist movement. When it comes to a workplace it’s relative, and the manager has to identify the long term financial interests of the owners relative to the rest of the workforce and the customers, not based on his or her own political and social opinions.
But the difference between EMILY and Sasha is that EMILY has what might be a very fixable problem, if simply warned to shape up and leave politics at home. Sasha has more toxic opinions (relative to most workplaces and customers) she is being less public about, though obviously not entirely keeping them to herself or else I wouldn’t know.
I’d be looking to upgrade the workforce from people like either Sasha or EMILY, but again subject to EMILY being confronted about her problem and given a chance to correct it.