Mr. Dorsey (or at least Mr. Dorsey's business, Twitter) has been voluntarily elected by its 321 million users, any or all of whom are free to walk away at any time; by its thousands or millions of stockholders, any or all of whom are free to divest themselves of their shares at any time; and by its thousands or millions of advertisers, any or all of whom are free to place their ads elsewhere at any time; to do whatever the hell he think best serves and is most likely to please those customers, stockholders, and advertisers.
Mr Cruz was elected by 4.2 million people in Texas. 4.045 million people preferred Democrat Beto O'Rourke, 65,000 preferred Libertarian Neal Dikeman, and more than 20 million either weren't asked or expressed no preference at all.
I doubt that even the 4.2 million people who elected Ted Cruz meant to put him in charge of what the media are allowed to report and what the American people are allowed to hear. But he sure seems to be assuming that he is. And we're not even able to fire the motherfucker, or turn down his products/services.