So two things
Activity pub is federation. So you'd be publishing to anywhere. Which as I said before, ghost is actively working on. They have a weekly mailer.
If your looking for an algorithm publishing centre, your going to find open source to be lacking. Generally speaking people who are looking for open source, don't want the algorithmic feeding that your describing.
I'm not sure I call banning hijabs in all public service roles in the name of "secularism" isn't a great start...
https://montreal.ctvnews.ca/here-s-how-people-are-reacting-after-bill-21-was-upheld-by-the-quebec-court-of-appeal-1.6789650