Totally with the OP... school seems to think nothing else happens in peoples lives bar school. Barring a bit of reading, I hate homework for children in early years anyway, it's unnecessary and always a fight to get it done that takes twice as long as doing it. It's not just 10mins, it's 10mins getting everyone to sit down, find pencils, get the stuff out, 10 more for me to workout what the instructions are supposed to mean, then guess at it anyway, 10mins of toilet breaks, requested for desperately needed water and snacks, then maybe 10mins doing the homework, and another 10mins of persuading everyone to put it back in bags and clear up rather than just wander off and leave it half done....
And in our house we have cubs, beaver, swimming, dancing, rugby and one night I work late so it's after school club, so getting work out on Monday to be handed in Friday is pretty challenging... and I think a variety of other activities is better for them than a pitched battle about writing out this weeks words.... so quite often... we just don't do it, and I don't feel guilty.
I do talk to their teachers and explain my POV on the homework, and our busy schedules. I say we will do our best to get it done, but that I am not going to force it, and mostly the teachers are quite accepting, and my kids do just fine at that.
Where I do lose my rag is the full on projects at home that are expected of very young children, which are simply projects that are going to be done by parents... I have built models, done experiments, produced powerpoints and videos... and usually, necessarily, with limited input from child, because they can't use powerpoint or hot glue or a screwdriver etc... but I have spent hours on it.... and I really don't see the point.... I do activities with my kids at home when they are relevant... but them watching me make a model "underwater scene" is hardly helping anyone.