I fail to see the connection between apologising for slavery and control or otherwise of misinformation in political elections. I hold no brief for slavery but up until about 1800 it was very widely accepted social and commercial practice. A significant number of mercantile fortunes made in Scotland were based on slavery one way or another and Scotland is in no way unique in this regard. But times and social attitudes change. It is entirely possible that some distant ancestor of mine owned or otherwise mistreated slaves and I can regret this if it happened, but I see no reason for me to apologise for it, I had no responsibility for it.
On-line misinformation is very much a current problem and one with potentially dangerous consequences and not just in the sphere of politics. Surely anything that may have an effect on reducing the level of this misinformation is to be applauded ? You can argue about the effectiveness of such programs or propose better or different methods. I do know that properly moderating even an ordinary on-line forum is a difficult and demanding task. I shudder to think how much more difficult it must be when it comes to the size of something like Facebook or X/Twitter.