Like you I deplore the effect over-exposure to porn has had on the sensibilities and sensitivities of our society of both women and men! Porn is a very poor role-model for real life and relationships!
I also believe there is much to applaud in the feminist cause but being a believer in a meritocracy I deplore the use of positive discrimination in any form - but enough of this...
It is hard and mind-altering work trying to live by a set of principles and standards and being constantly disappointed by much of the rest of the world and its attitudes - this results in an almost constant state of (suppressed) anger and frustration!
The expression "angry young men (or women)" has a great deal of truth in it - the inexperience of the young do tend to make them see issues in only black and white - things are either right or they are wrong!
Young people with a cause tend to be constantly frustrated because they are incapable of seeing any shades of grey - the historical reasons for an issue, the evolution of a situation and the many compromises that have been made and must be made over time - usually too much time...
Frustrated and angry young people see only the need for change and this fact has been a thing of record since ancient Greece!
By the time most people reach their early 30's things have changed somewhat - they have other interests and responsibilities and are tired at the end of each day and have forgotten why they were angry and have begun to live some of those endless compomises they used to hate so much and now begin to see shades of grey.
They tend to become more philosophical and relaxed in their outlook! Their anger has largely been replaced with experience!
This is mostly a good thing because too much anger or anger that is maintained for too long has a very corrosive effect on friends and family and relationships and especially on the host of all that anger and frustration...
I feel it is possible you have sustained your anger too long - you have probably spent one-and-a-half decades preaching about and supporting your cause and avoiding the company of those who do not share your views and now you are beginning to suffer some of the corrosive effects...
It is also likely you have latent masochistic tendencies which drive you to choose your most emotive subject for fantasy material!
I feel in order to go forward you should widen your horizons somewhat regarding the choice of friends and acquaintances and experiences and attempt to spend more time on other interests and hobbies in order to dilute the emotions the cause of feminism makes you feel...
You don't have to pass the cause itself on to a new generation but just the baton of anger...
Emptying your head onto paper periodically can be very therapeutic and help dispel some of that so-corrosive anger. Some counselling might also help, especially to explore your sexual response - though you might wish to explore possible masochistic tendencies in a more practical way?