Why do I dislike / disgust Prostitution and Prostitues and still like Porn ?

Because with porn it is possible to pretend like it is something private.

 

Because you are scared of interacting with a woman in a sexual way

 

In the first place you were probably(at least I was) disguist by both porn and prostitutes. It's all about mental barriers and value system. It's common to believe that once you go to prostitute you're looser because you've to pay for something you can gain for free and questions your masculinity. "Earning" a woman/gf takes courage, austerities, time.
On top of that you've to be willing to go to prostitute, what I mean by that you've to contact her -> go to her(or her to you), so the travel between goal and need is way longer compared to porn which is fucking e-v-e-r-y-w-h-e-r-e. What's more it involves at least 2 people(you and her) so it's no longer solely you, who knows about your perversion. Not to mention venereal diseases.

 

A dislike for proatitutes but an interest in porn could be a result of not understanding the potential link between prostitution and porn. The two can be very similar and interconnected. Porn could generate revenue from viewers, and so the porn producer can very likely be paying the porn actors. Once a porn producer pays a porn actor, the porn actor is no different than a prostitute. The actor is being paid for sex.

Of course there may be instances where people are unknowingly recorded during sex. But if someone prefers porn for that reason, then that person might be very morally or mentally sick. Voyeurism and spying on people are not much better than prostitution. Voyeurism is usually worse and less legal than prostitution.