Much feminist activism is profoundly subversive. That's why it's opposed so vehemently by many women as well as men.
Spiritually, whatever undercuts the concept of God as daddy in the sky will help break down patriarchal conditioning and free us for new visions of the Divine.
Sabotage is more problematic. It calls to mind bombing and shooting, which at this point won't achieve anything worthwhile. But sabotage doesn't need to harm living creatures; systems can be obstructed in many ways, which I can't discuss more specifically because of the police state under which we currently live. They are described in my book Radical Peace ( http://www.amazon.com/Radical-Peace-People-Refusing-War/dp/0979988691 ).
We'll be most successful by using both legal and illegal tactics but keeping the two forms separate. Illegal direct action is sometimes necessary to impair the system, impede its functioning, break it in a few places, open up points of vulnerability for coming generations to exploit. This doesn't require finely nuanced theory or total agreement on ideology, just a recognition of the overriding necessity of weakening this monster, of reducing its economic and military power. It does require secrecy, though, so it's best done individually with no one else knowing.
As groups we should do only legal resistance. Since we have to assume we are infiltrated and our communications are monitored, illegal acts must be done alone or in small cells without links to the group. Security is essential. Police may have the identity of everyone in the group, but if members are arrested and interrogated, their knowledge will be very limited. The principles of leaderless resistance ( https://en.wikipedia.org/wiki/Leaderless_resistance ) provide the most effective defense for militants.
Using these tactics, we can slow down this behemoth, curtail its expansion, make it a less effective murderer. The government will of course try to crush this resistance. But that very response can eventually seal its doom because it increases polarization and sparks more outrage. People will see the rich have not only taken away our possibility for a decent life, but now they are taking away our freedom. Then the masses revolt.
When the police and military have to attack their own people, their loyalty begins to waver. They realize they too are oppressed workers, and they start disobeying their masters. The power structure grinds down, falters, and falls. At this point the revolution can succeed, hopefully with a minimum of violence. Then the people of that generation, with the knowledge and experience we have passed on to them, can build a new society.
This is not a pleasant path of action, and those whose first priority is pleasantness are repelled by it. That's why reformism is so popular: it's an illusion that appeals to cowards. But when their backs are to the wall, which will inevitably happen, even they will fight back. And there's something glorious in that revolutionary fight even in its present stage -- much more vivid and worthwhile than the life of a lackey.
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