That is not what they're saying. They are saying that there's only one reason anyone would need the name and address of trans children and that is to terrorize them. Even if they say they have a different reason (history shows that they don't) the one only effect that they could and would have is terror.
Activists don’t need the personal information of people they disagree with. Terrorists do,
This is not a case of somebody saying something smart but just wording it terribly. It's no different than idots who spout "only cowards wear masks!" It's something only somebody that has no familiarity with actual activism - ie, no familiarity with the actual stakes and risks involved in real activism work - would say.
The libs on here are really good at demonstrating that they know absolutely nothing about activism in any shape, way or form whatsoever - but are still willing to feign expertise on the matter.
I guess heckling antifa from the sidelines back in 2016 gave you lots of practice in that, eh?