Myself and my partner pay a huge amount of tax, and no we don't have lots of tax breaks.
I'm not sure how this bonus works (if its means tested) but I think that there are a lot of families struggling at the moment and a bonus to help families buy what their child needs for school is a good thing, i want it to stay. Even better if its means tested because those on higher incomes prob don't need it.
Child care rebate is the only way a lot of working families can afford to go back to work. If its abolished, a lot of women would not be able to afford childcare, so could not go back to work and this therefore decreases the workforce (and the income tax pool).