Alternative perspective, why should the unvaxed kids be forced into homeschooling? Maybe the parents of vaxed kids should be given the option of putting their vaxed kid in a school that has a mix of vaxed and unvaxed kids, or to homeschool? Given the general demographics of the unvaxed I'd say that's far more likely to happen then a school vax mandate. They would never get away with turning away a bunch of African-American kids going to some of the strapped inner city schools. Food for thought.
An alternative that could happen is vaxed / unvaxed kids in separate classes or schools. Though that wouldn't be possible everywhere.