Pp, you are hilarious! Completely out of touch with reality (as you pass judgment from the safety of your bubble), but hilarious
Not all of us have the financial wherewithal to send our kids to private school...especially those of us with more than a couple kids. It's just not possible. You see, we already don't live in a McMansion, or have a cleaning service or lawn service, or drive fancy cars, or take fancy vacations, etc. So there's no magic way to come up with money for private school. Period.
So, we supplement at home...and it's exhausting. And it's not sufficient.
How much supplementing are you doing at home that it's that exhausting and still not enough?? Maybe you need to reexamine your family-school-life balance priorities. Or just get a workbook or sign up for online teaching and set aside an hour after daycare where your kids have to study while you have time to get your stuff done and aren't exhausted. Or hire a high school student to ride herd on them and keep them working.