When dh and I disagreed about the idea of homeschooling, he made the mistake of saying that if I homeschooled dd I would have to handle the homeschooling without any help from him. I just smiled at him and he quickly realized that I could handle homeschooling but he he could not handle getting dd up, ready and to school, and all communication and meetings with teachers, and all homework help.
The OP could always make her dh take responsibility for his decision by handling EVERYTHING related to the school. His decision, his problem.