Yep. Imagine being in a relationship with a man who enjoys strangling you til you pass out.
Fuck that! I have higher standards!
Would these 'choking sex is fun' posters on here like to think their daughter is with a man who likes to throttle them til she passes out? Would they be happy for her to risk having rough sex that she could possibly get brain damage/suffer a stroke from? Would they hell! 
And as has been said, the men who enjoy strangling women (in the name of 'sex play,') is sure to be the same type of man who enjoys anal sex, probably fisting, and almost certainly slapping his woman hard, and spitting on her. Imagine having such low standards that you will be with a man like this?
As a few posters have said, this has all come from 21st century porn. This never EVER happened pre mid 1990s. Before I met my DH, any man I was ever with never wanted to fucking strangle me, or spit on me or shit on me, slap me so hard that I had a lash-mark, or stick his penis up my arse!
What the fuck has happened to (some) men? Any why are (some) women putting up with it, and convincing themselves it's 'normal' and 'enjoyable?' 
I feel so sorry for young women now, who are growing up in a society where foul, porn-driven violent and dangerous sex acts are deemed as 'normal,' and they are called frigid or boring or 'vanilla' (boak) if they don't want to partake in this shit!
To the posters who are normalizing this shit. Give your head a wobble! 