I think if the far left is going to use the term "cis" and make arguments about how families cause inequality and so-on, it might be smart to develop a term for what it is that binds SJWs together against the "cis". I'd humbly suggest the term hostile perversion because that's basically what this is. It's not enough for them to be promiscuous, or be a cuck or so-on, they also have to be hostile towards people who aren't promiscuous or who lack for any sexual deviancy.
Of course, a lighter term than perversion might also work here, even though that is what I personally believe it is. There are also some class-based undertones at work because while the middle classes tend to be monogamous, the lower ends of society and (these days at least) the failed children of the upper crust seem to not be monogamous and they are aware of the difference in "staying power" this bestows, hence the "families cause inequality" arguments and their hostility towards anything that might produce a family.