No aircraft carrier has actually been sunk since World War 2. So they can't be that vulnerable. Isn't that like saying Hoover Dam has never been destroyed, so

No aircraft carrier has actually been sunk since World War 2. So they can't be that vulnerable. Isn't that like saying Hoover Dam has never been destroyed, so it can't be that vulnerable? I'm not sure that there have been serious attempts to destroy either (is my point).