Nope. In some states it is illegal for your employer or a potential employer to make decisions based on your social media history.
https://www.cnet.com/news/six-states-outlaw-employer-snoopin...
Also I read through the text of those laws and they all specifically say that they are not limiting the employers right to monitor their own systems in any way. So Facebook looking up how their employees use Facebook would be completely fine under those laws.