You can visit a page from time to time to get 'better insight into how they formed their opinions'. If you're actively following it, that means you want to see everything they have to say, as soon as they say it (and you're boosting their follower count), and that's no longer defensible.

Plus, there would be at least some evidence of the guy arguing for trans people if that was the case.

'Following', for most people, translates to 'things I'm interested in'. Are you really claiming there's nothing at least suspicious in the statement "I'm interested in limiting trans rights"?

Lastly, they are free to correct any misconceptions publicly. Did he? Nope, just went on to criticize the medical industry and praise Jordan Peterson.