If anything, language is used as a weapon of the right, case in point numerous far right bloggers like Joshua Bonehill or Tommy Robinson (who is currently getting swatted into the long grass by Gary Lineker) who post copious amounts of anti-Muslim and/or anti-immigrant rhetoric every single day yet hide behind the defence of "But I never said nuffink racist Guv" - because posting a tsunami of material that depicts a specific group in a negative light, most of which is riddled with outright lies.
For example Bonehill is responsible for that photo doing the rounds on social media saying a historic British church has been turned into a mosque, as well as putting up posters around Croydon falsely claiming a six-year old had been kidnapped by an "Asian grooming gang" - in both cases were outright lies, as the church in the photo
is still an active Christian church while the photo of the "kidnapped" girl was nicked from a professional photographer's
Flickr account.
Those are examples of a weaponised use of language because those are designed to generate threatening, abusive or insulting behaviour towards a specific group - which is the legal definition of racism as written in the Public Order Act 1986.