There will be plenty of time to eject this player if she says similar things when she is 14. But, now, she is 10 (or 11). Art Linkletter got rich off of cute kids saying outrageous things.
I seriously doubt letting this slide put this kid on a slipperly slope to disaster (or AA-dom).
I keep wanting to break out into
"We got trouble.
Right here in River City.
With a capital T and that rhymes with P and that stands for pool."
She could probably benefit from an umpire using this as a "teachable moment" - but ejection? Nah.