This person is aware that there is a slight difference in the sizes of Africa and California and that population density does play a role here?
This person seems to be less hysterical then others. I do not think that qualifies as "rational".
There are a lot of significan differences.
Bear are omnivores, so a given area can sustain more of them.
But she makes a valid point that it is an emotional response to the death of a lion, rather than a rational one.
She does not come out and say it, but if you want wild lions in Africa to survive, you shoud support sport hunting of them.