Do a lot of googling of home schooling. Read and take notes. Home schooling is now an established thing, and there are networks you can join. Home schooled children often meet up with other home schooling families for social contact.

It is quite possible to interact with the local school system for sports and trips and in other ways. For that reason it might be a good idea not to get into fights or hostility with them.

Home schooling is sometimes religious but sometimes not.

In short arm yourself with a lot of information to discuss this with your husband.

No, there is no need to neglect social development of the child while home schooling, if you are understand the need to work at it and actively schedule contact with other children, both other home schooling families and local activities of schooled children.

Start notebooks and lists and files.

Also google teaching supplies. There are many websites.

The laws and regulations vary by locality. There are websites about home schooling law. Sometimes it's spelled home schooling and sometimes homeschooling as one word. Keep looking and looking on the internet.