It seems that without the article's context, these are controversial points. The word 'minority' here is used to describe a group of people bound by their ideas

It seems that without the article's context, these are controversial points. The word 'minority' here is used to describe a group of people bound by their ideas and opinions. The minority rule states that the opinions of a few can be projected onto a whole through an emergent property. If a few people do not like to eat spicy food, the whole office might cater mild or bland for an event. An outsider would think that the entire office dislikes spicy food. If there is a small group of people who think that expressing certain ideas is incorrect, then an entire group might avoid speaking them. A free society needs to make constant, conscious decisions about what ideas cannot be expressed, because if smaller groups are allowed to make these decisions without review, then all free speech will dry up in a real way. We should always argue when some group says they don't like hearing certain things. The fact that we are often arguing is a sign of good health for free speech.