The article "Why America First is a Dangerous Doctrine they has people who was against Donald Trump which was the anti-Trump administration. This group can be a unhealthy community because they can divide themselves from the people that do support Trump that was part of their community. Since they are divided then it could create conflict between the two and can cause a big impact.
In the article Behind the internet's Anti-Democracy Movement are a group of people known as the anti-egalitarians who only thought for them. This group of people only thought about the way they viewed things they didn't care about the people around them and this is unhealthy because its a community you have to think about others which they didn't.
