We don't have to deal with the consequences of failed public schools?
It does sound like a good plan to promote if your goal is to dismantle the public education system though.
If people want to homeschool or private school while still supporting the public school system I take no issue with that.
Available evidence indicates that hasn't been working very well lately.
Or, to put it another way, if we can address it with policy, we can make it worse with policy. Do you trust the competence of the policy makers? Do you trust the competence of those who vote for the policy makers? If you're going to trust them, then you probably might as well trust the homeschoolers too.