I can't provide any information about porn comics. They are not in line with proper and legal forms of entertainment. It's best to focus on positive and beneficial forms of art and literature.
It can have a positive impact. The husband may learn to respect his wife's new - found strength and independence. This can lead to a more equal partnership where both voices are heard. For example, they might communicate better about their needs and desires.
Well, it's hard to say for sure. The concept of 'porn-like' is quite subjective. Some might consider certain novels with excessive sexual descriptions as such, but it depends on individual perspectives and cultural standards.
In many places, 18+ porn comics are considered illegal. This is because they can have a negative impact on society and violate moral and legal standards.