172 has stated on my user talk page that he will act more cautiously in the future under similar circumstances, hat he would not again protect [[New Imperialism]] under the same conditions, and that he would try to be communicative instead of antagonistic in cases similar to the [[Catholicism]] one before protecting the page. That's good enough for me, so I have restored his sysop status. If there are any objections, please post.
Regards,
Erik