If you really know enough to say this, you know that's not who I'm talking about. Also, he was only talking about crossdressing.
Also also, that guy used the letter arrangement when it was still just a latin prefix, before 'degenerate who I won't give publicity to' got away with the actual anglicization of it in 'cissexual'. Before that, 'cis-' still only meant 'on this side of'. Only after that we got the ENGLISH homonym 'cis' as contraction of 'cissexual' defined as 'the opposite of transsexual'. In fact, a case could be made that cis only really became a thing after that one internet weirdo I won't give publicity to popularised it.
It's linguistic warfare 1984 style, to make it seem as if the normal people are the weird ones. Yes, spearheaded by a pedophile.
All of which you must know if you decided to dig that far back. Right?