Is it better to seek a divorce from a husband addicted to pornography who refuses to have children after the death of two, despite repeated attempts at advice, or to remain with him in the hope that Allah guides him?

The husband's engagement with pornographic websites is a reprehensible act, and his persistence in it is an even greater reprehensible act. He does not have the right to prevent his wife from conceiving. The wife is advised to continue counseling him and not despair of his reform, and to help him repent. If counseling does not work, she should weigh the harm of divorce against the harm of remaining with him in that state, and choose the lesser of the two harms.