Generally, if it doesn't make profit short term or long term, it is unacceptable, and here, Jack Dorsey essentially wants to kill Twitter as a company, so of course he can't do that. For the same reason I won't let the mechanic I hired to maintain my car destroy it instead just because he thinks my car is bad for the environment or something. He may be right, but it is not what I paid him for. And if I discover he actually destroyed my car, not only he won't get paid, but there are good chances I will sue him.