Pornography doesn't innately require sexual exploitation.
Money is a coercive agent in any situation, and coerced sex acts are rape.
Non-consentual sex acts are rape. My ex did porn for years and no aspect of that was non-consentual.
There's also plenty of amateur porn on xHamster.
Yes, and like I said, money makes the consent given questionable at best. Threats of violence can also be used to negate consent. Social pressure applies as well. These factors do not disappear in so called amateur pornography.