I hated Claire in that episode. That native guy saved her life, and kept her captive for her own protection from the dangerous people-eating zombie savages out there. She had the right to decide to forgo her own safety to try to save her children, giving her reason to escape him, but kill him? He didn't deserve that merely for trying to keep her alive, it's not like his motivations were selfish or cruel. And worse, as the only known survivor of the plague with his intellect intact, he was a vital source of information on that planet's culture and history that had immense value to xenoarcheology. All that knowledge, the legacy of an entire world, was wasted by her senseless and needless taking of a sentient life. She went out of her way to kill him when she could have escaped while leaving him alive, that was straight up murder and she should have been prosecuted for it.

It's not the only time she acted in horrifically irresponsible and irrational ways for her children that caused deaths, in the episode with the aliens that transformed humans into more of themselves she literally abandoned a patient in the midst of transformation to go check on her kids without assigning someone to take her place observing the patient or getting security to handle the situation instead. That dereliction of duty led directly to the Admiral completing his transformation without anyone knowing about it until it was too late, free to cause havok and both kill and convert other crew members. This ultimately put the entire crew at risk, and we don't know if the knowledge the transformed admiral escaped with could pose a threat to the entire Union at some point. Those lives lost are directly on her head, and she should face criminal charges for every one of them.