This whole thing about putting people on ignore, encouraging others to do it or threatening to put people on ignore is all snowflake stuff. There are no kids here, this is an adult forum, if you don't like the posts from a member then just ignore them for that particular topic. Personally I find those using the ignore in world news topics try to have it as a free pass so they don't get challenged to any misinformation they spew. That's ok, they can still be responded to whether they have you on ignore or not.
What I've also found is that those who can be utterly disruptive for whatever reason in one topic, can add lots of value to the forum in other topics. If you have them on ignore you miss their best stuff.