Self Contradictory and Unsourced 

The fundamental premise of this article is self-contradictory.

To summarize the definition given here: 

A "hate group" is a group of people with an ideology that expresses opposition to other people with a particular characteristic, practice or belief system.

People who define "hate groups" as ethically bad and which should be opposed or suppressed, are themselves a "hate group", since by their own definition they are opposed to groups of people with a certain ideology, and often advocate government suppression of hate groups via the criminal code.

The recent coining and popularization of the term "hate group" is a propaganda device using "highly charged words" used by one ideological group to demonize a group holding an opposite ideology.  

Note, for example the Anti Defamation League mentioned on this page.  ADL is a group dedicated to the defense of Jewish people and culture, and has often worked to pass laws to suppress anti-Jewish ideological groups.  Arab and Muslim groups, on the other hand, refer to the ADL as a "hate group" while themselves advocating the abolition of the State of Israel, etc.

Additionally the definition of hate group used here is not sourced.

In the pursuit of NPOV, it would be better to write this article about the use of the term "hate groups" as a propaganda device, rather than allow Wikipedia to become a conduit of such propaganda.69.19.14.35