Virustotal shows the page to be free of malware. I suspect that Facebook is trying to stop its users from visiting American Greatness because the site is conservative.
To verify the Virustotal result, just copy and paste this URL:
https://amgreatness.com/2018/09/30/epitaph-for-a-dying-culture/
into the Virustotal URL scanner (not the file scanner) here:
Thanks for checking that. Will try the link contained in this post to see if it “sticks.”