I think the mind-control that groups like the Intelligence agencies use on people can be related to the manipulation of semantics. There is the way people can be influenced by the everyday language that people use but it really doesn't stop there since semantics has influence all over society and people's perception of things. It's present in music and art in general, politics, education. Most people can't stand to listen a certain type of music even if its good and have the need to be constantly stimulated by different songs, despite a lot of this people not realizing that the radio only plays like the same 20 different songs for a certain amount of time before they are replaced by the new fad.
SJWs are an extreme example of how a group of people can be manipulated and have their minds destroyed by the manipulation of semiotics, but the masses can also be manipulated in this fashion. It's amazing how drastic the change has been in the last decades with the coming of the Internet and social media.
It should really show people that we have to do everything we can to save the level of discourse in whatever means of communication we still have.
there doesn't seem to be anything here