I’m not as optimistic as your last prediction, unless Twitter and facebook start eating their own and that Sparks a more diverse range of points of view coming on board. I also think that in terms of interests, people joining these platforms will always have politics as number 1
If they get large quantities of Gen-X and baby boomers to move from FB to Gab, I think that will kill FB.
When they open up digital marketing on a platform thats less saturated, that will be the real test though. If Gab can do digital marketing decently corporations will start paying them money and stop criticising them so openly.