Call it the Big Realignment. Sorry, Gab, Parler, Gettr and quite possibly even Twitter, someone has moved into your block. Your days are numbered. It was a noble try—well, in Twitter’s case, maybe not so noble—but you all knew this might happen. The one person with the brand to remake the social media space—Donald J. Trump—has more than announced plans to do so. His beta is coming online next month. Signups have begun. Evidently—after having been importuned to do such a thing for months, even years now, with people begging him to take on the cancel culture, and just when most of us had forgotten he might do such a thing—Trump has been working behind the scenes with, surprisingly and impressively, no leaks. (We should have known since he never signed on with the other companies, despite numerous invitations.) I don’t know about the rest of you, but when the …