Why are we so hostile to non-natives?

"Giant cannibal shrimp more than a FOOT long invade waters off Gulf Coast."

The black-and-white-striped shrimp can grow 13 inches long and weigh a quarter-pound, compared to eight inches and a bit over an ounce for domestic white, brown and pink shrimp.

Scientists fear the tigers will bring disease and competition for native shrimp. Both, however, can be eaten by humans.

‘They’re supposed to be very good,’ Pam Fuller, a biologist with the U.S. Geological Survey told CNN. ‘But they can get very large, sorta like lobsters.’

They're very good. They're the size of lobsters. Does everything have to be a problem? Can't we just say thanks?

This reminds me of #Asian Carp on an American Rampage# — the Chinese puzzlement at our anguish over Asian carp, their favorite food fish.