Of course there are serious ethical problems at FB (and many other companies).

That's not at issue in this thread of for this post.

The issue is "meddling with election" which cannot be proven as a specific FB initiative, any more than CNN, Twitter, FB and other companies actively helped elect Trump by giving him so much attention.

In hindsite, these companies can look back at their practices and see how the social media worked. To say that they planned the whole process is another matter. Remember that Cambridge Analytica manipulated FB and other sites in order to elect Trump. Thus both FB and Cambridge Analytica 'meddled in that election'.