My chosen, tender way to motivate non tech people to leave big Tech platforms for the fediverse is to post sth nice (nice pics, family info,…) on Friendica, Pixelfed or Lemmy, and then paste the link on Facebook, so that my Facebook friends see it, like what they see, get curious what’s that strange platform they had never heard of, register.

Problem 1: Sometimes FB shows the linked posts picture, sometimes it doesn’t. Problem 2: Some instances deactivate that content can be shown by external platforms like FB.
So far I did it three times; 1 (my friendica instance) didn’t show the pic though. So far, the success count is still on 0. But I still hope it will work :)
Regarding your "example’: That’s new to me, being a German. in this broad way the statement is wrong, i suppose. ChatGPT confirmed this. there is no law against denying the right of Israel to exist. It is only true that German politics has ever since Second World War felt a historical responsibility to support Israel against antisemitism.