I stopped doing DH's laundry a few months ago, because it had got to the stage where I was doing all domestic and child-related tasks, despite working FT and being the sole breadwinner for over 3 yrs. DH was never great at such things, it has been a bone of contention for years. He began working again 3 yrs ago, and just stopped doing anything at all to help. Nor was he contributing anything much financially. The imbalance is crazy and is A Problem.
Laundry was an easy task for me to opt out of in this way. Now it's his job to do his laundry. He has a separate laundry basket. I wash his towel, facecloth, etc. with the rest, and I wash our bedding. I don't do half-full machines, I don't think I am a freak, or a selfish bitch, nor do I have issues with handling other peoples smalls. I just think a line has to be drawn somewhere.
I don't see what is wrong with each individual taking some responsibility for their own laundry, TBH. If DH is around (v rare) when I put a load on, I ask if he has anything to add (space allowing). He does the same once a fortnight when he remembers that he needs to wash his stuff. When the DSs are big enough, I'll get them doing laundry in a similar way (i.e. being aware when a load needs doing, and including other people's things), so that they get used to doing it on a regular basis, rather than thinking it is done by a fairy.
It's all very well if there is a healthy balance in the couple, but if one person is doing far more than the other, laundry is one thing that you can opt out of easily. I have a fair few friends who don't deal with their DP's laundry either, because they just never have. And this is in macho France.