Could a consistent effort by a deep-pocketed competitor kill them, if they can't find a good way to monetize (which seems unlikely)? The same way Bing is attack

Could a consistent effort by a deep-pocketed competitor kill them, if they can't find a good way to monetize (which seems unlikely)? The same way Bing is attacking Google search: just spend heaps of money on it, and wait for the other party to make a mistake?