I hate homework, due to the fact that dd can not produce any work without constant supervision!
Reading, spelling and tables I have no problem with in general.
Dd is seven though and homework is a daily battle. She has reading (necessary), 10 spellings (fair enough), but, she has to write out three times each and then make a decent sentence for each one.
She also has a homework sheet for the class and a separate one from a small group she is in to aid her learning. On top of that, there is sometimes a science homework to do which they get a fortnight for.
All this would be fine, if they had no outside interests or friends.
We have activities for ds1 and dd on a Monday and Art club for dd on a Tuesday. We usually get home after school atabout 3.45pm the rest of the week and dd needs to be in bed by 7.30pm.
I have three children - not a lot of time to get it all done, although thankfully ds1 can get on with his own and ds2 isn't at school yet. Factor in tea-time, play time, bath-time and story time and it all gets fairly wearing.
In principle, I agree that children should have some homework, just not before the age of 7-8, apart from the basics, and not the ridiculous amounts we seem to be getting!