If people help by marking the actual answers as helpful, the answers will be presented on the main page before the personal snipes.
Indeed it would. But only the person who started the topic can mark a post Solved. Of which the best choice would be one of the posts that describes what to do, and includes a link to one of the various sites you can get other subscription calendars from.
More unfortunately, only the people finding this topic and agreeing with the nonsense mark the nonsense as Helpful, as seen by the two with gold stars on the first page.
But if at least 5 people mark an actually helpful post, it will also be seen on the first page.
Some updates ago, that term and calendar was changed to "Show Holidays", apparently more aptly titled "US and Religious Major holidays". Without any warning to subscribers, the number of marked days tripled and filled up our calendars creating false positives.
That's what started this whole topic. Apple was trying to be non-denominational and removed some religious dates from their calendar. People (Catholics) got ridiculously bent out of shape about it and demanded Easter and some other dates be put back in. Apple responded by doing the right thing - adding all religious dates they could find so their calendar didn't come across as leaning towards one particular religion.
Did that help? No, of course not. Then the bent out of shape Catholics got even more bent that these awful Muslim, Hindu and other religious dates were there, and by golly, they didn't want to see them! And here we are.