How is it any different than Bezos buying WaPo, in principle? That does not seem to have been detrimental to Amazon shareholders. And how does having a propaganda arm detrimental to Tesla financial interests? Marketing is a euphemism for propaganda after all.
(I can see legitimate Tesla shareholder concern for Musk attention being spread too thin, but to claim having Twitter makes things worse beyond his existing presence as a user seems ridiculous.)
It's not just the inevitability of less time to focus on managing TSLA (though running Twitter being a full time job was an issue for Dorsey, and he was only running one other company and wasn't at war with the management) but also the hints that this is an obsession.
I'd like to take this occasion to remind you that my first comment was a rebuttal to someone's argument speculating about the motive or rationale behind this acquisition and posited that Musk's control of the platform would afford him political influence to further his own financial interests, hence my opening reply.
Clarification: Positing that many TSLA shareholders presently believe Musk's control of twitter would afford him political influence to further his financial interests.
If I keep myself in my personal mindset of a Musk skeptic and try to model the behavior of TSLA shareholders, I would anticipate TSLA shareholders selling immediately (today, and every day previously in the past several years), because that is what I would do if I were gifted TSLA. But that's obviously not what TSLA shareholders do, so my personal mindset evidently makes for an inadequate model of TSLA shareholders.
If instead I try to suspend my own beliefs and imagine myself as somebody who thinks owning and holding TSLA is a good idea, then my new assumed mindset says that Elon Musk getting more power, by hook or by crook, is a good thing for me.
I really doubt that this is the case. I know that there's some real retail investor interest in the stock price movement and for a minority the fundamentals, but I'm sure there's some institutional investors and smart money who are in it for the long run and who analyze the company's financial statements, and evaluate and scrutinize the founder's every move and decision and this Dr. Evil's scheme of taking over Twitter and turn the platform as a tool of propaganda for Musk's financial interests and self-aggrandizement looks very concerning to put it mildly.