Again people are assuming she thinks the same as humans and yet she isn't one and is immortal which cannot be killed unless you disperse her molecules over a large enough area.........................Sersi is a low Sky-Father type with matter manipulation oh I think might might be able to pu up a shield to protect her from Superman's Jobber Aura in time.
Not to mention she doesn't have to just alter and maipulate things around SM she can manipulate HIM.