Let him do and don't criticise him all the time. It's not pleasant and it will be an excuse for him to do nothing.
But maybe let him do other chores, like the dusting, hoover and so on... things that don't involve washing as he doesn't seem to be good at it. And tell him "love, as you don't enjoy washing blahblah, and you know I am a bit fussy, what do you think about redistributing the chores? It would be better for us...."
How old are the kids? They can do their little chores too, like taking their clothes back to their wardrobe.
But maybe let him do other chores, like the dusting, hoover and so on... things that don't involve washing as he doesn't seem to be good at it. And tell him "love, as you don't enjoy washing blahblah, and you know I am a bit fussy, what do you think about redistributing the chores? It would be better for us...."
How old are the kids? They can do their little chores too, like taking their clothes back to their wardrobe.