To me it reeks of a certain lack of self awareness, respect for others and questionable decision making. You can be interesting and edgy without being a total asshole.
I also question his actual interest in sustainability. How exactly does paying $40 billion for Twitter fit into that grand strategy? What about driving a wedge between large groups of people by promoting hate speech helps any positive societal level change? Even if he did, do I want to put that power in one rich man?