WTF is Industrial?

Throbbing Gristle, 1981

"Industrial" - Besides "gothic" this is probably the most controversial and widest used term within the realm of dark subculture(s). Having a look at the music that clubs and DJs offer it often appears that it hardly has any meaning of its own but is bound to be mentioned besides other genres such as "EBM" or "Electro" (whatever this is supposed to be). Apparently "Industrial" has to be mentioned if electronic music genres are the topic?

Having a look at YouTube may sometimes clear things up, but not in this case. Apparently "Industrial" is more of a dancing style? I see some of those cyber people throwing their limbs around in a manner that reminds me of 90's techno - and the music to which they dance is very fitting (fans might lable it "Hellectro" or "Aggrotech" or something along these lines). Very much "Loveparade" for me, but I don't want to be mean - it looks pretty exhausting and I don't think I'd be able to dance in this way. Not that I wanted to.

Confusing? Certainly, but who takes the time to do just a little online research will soon discover how little any of this has to do with Industrial.
Like so many thing it all started in the alternative music scene of 1970's England...