I don't know that there's much point in continuing to patiently explain why people should defederate from Facebook's Threads, to be honest.

This has been explained so many times, the instances who are insisting on federating will almost certainly have had the opportunity to learn of the reasons and act accordingly, even if they claim they "don't see the problem". Many of them have even ignored or misrepresented the explanations addressed directly to them.

I think that by this point, it's much more reasonable to assume that the holdouts understand very well what the problems are with Facebook - they just either don't care, or they believe that whatever (they think) they will personally get out of the deal is more important than those issues.

The demographic distribution among those against vs. in favour of federation is probably like that for a reason...