If he can't get porn at home, he'll most likely go elsewhere to get it, leaving the OP and their kids all alone most of the time. He'll also most likely go and act out what he's doing via text and online with the women he meets on his dating profile.

So, blocking porn at home isn't a good idea for this situation. No, if she wants a man that respects her, and isn't a regular porn watcher, then she either needs to go to couples counseling with him or just flat out separate from him and work on the divorce papers.

I'm strongly suggesting divorce if he refuses to change or work on his problems.