No day passes without a Democratic politician, a left-wing commentator, or, if I may be excused a redundancy, a left-wing academic labeling Republicans and conservatives racist.
– Dennis Prager

Ideologies pose a danger in that they not only limit their members, but outsiders as well. You obviously have to call your movement something. This is where things fall apart. All too often, the name of the ideology is used as a defense for it. Don’t approve of Black Lives Matter? You’re a racist! Don’t approve of a feminist idea? You must be a sexist! It is the ultimate non-argument, because it literally avoids any possible argument.

This is very important in opposing ideologies. For example, if you attack Democratic ideas, you must be a Republican. If you’re for Democratic ideas, you must be left-wing. This leaves the idea out of the question. You can’t debate the idea for what the idea is worth. You have to line yourself up with a particular ideology in order to debate it.

Another very important issue is “guilt by association” or just simple smearing. On Buzzfeed or other typical leftist sites, Republicans or conservatives are racist, sexist, bigots etc. So, if you are a Republican (or echo a conservative idea) you must be racist. The same thing happens to the alt-right and men’s rights activists. Yes, there are problems with these groups, but they do not give a true sense of the movement or ideas, as they are selected examples (new law: when media posts an article about trolls / “harassment” on the internet, and tweets are embedded, the tweets more often than not have 20 retweets/favorites or less). Of course, it still is ignoring the basis of the ideas. If the idea itself is bigoted, then why do you need to connect it to a movement? If the idea is so helpful and virtuous, can it not stand on its own?

It also leads to endless ad-hominems. “You are not a true conservative” or “you don’t understand the movement” is again ignoring the core idea. Why should I have to know everything about an ideology to criticize an idea that affects broad society? Of course, the person who claims to be a “true” part or that understands the movement, is the other person. It is a position that can not be argued against – because it is not an argument.

Outsiders are crucial , as the entire purpose of a movement or ideology is to attract those not in the movement, and create a positive perception (or so it would seem to an outsider). If someone not in your movement finds something off or generally does not agree, it can be used as a tool of recruitment. One can explain why their argument is flawed, or the movement could gain new insight for a problem. Of course, any internal or external disagreements lead to the collapse of an ideology, hence this behavior and the need for ideological preservation.