You responded to a post about people falling for Trump rhetoric, so assuming you were as well is just working in the context of the thread. Insert far right if you can't wrap your head around context.

It is acknowledging that de radicalizing someone stupid enough to fall for far right rhetoric isn't something that is a one and done deal. Extremely few people do more than kind of change their viewpoint on one or two topics and will easily slide back into the same mindset on new or even the same topics when exposed to more of the same.

Saying you deradicalized a half dozen people is bragging that you got some children to settle down for an hour. It is extremely likely that they just say nice things in front of you to shut you up while continuing the same thing when you aren't watching.