Sure, and I agree with you that only doing 'easy' activism can be an out.

But could you get involved in doing similar things again? There are avenues here to get involved with supporting political prisoners, there are infostores, free stores, squatters' networks, etc.

How about starting with something small? Join Liberty, say, and get involved with some of their awareness campaigns? Even if you don't have a lot of time, slacktivism can be useful :-)