The company had some profitable years pre-covid, and Elon's first action was to nearly double their debt _and_ slash their income.

He may have done far worse things as well but that depends on your opinion of his product/feature changes. But the additional debt he has saddled them with and the revenue he deprived Twitter of aren't really arguable, and his attempts to cut costs by short term slash and burns don't make anywhere near the dent needed to offset them.