Well, other than being active at the ballot boxes, there are many ways to help keep our rights. There are many opportunities to be active in the pro-choice movement, from fundraising and donating, to various volunteer positions with organizations like NARAL and Planned Parenthood.
Otherwise, perhaps it would be a good idea to re-think the way that we deal with people who disagree with us. Is it worthwhile for us to use their tactics? Should we be trying to justify our position to them? Is there any value to trying to explain ourselves, since there really is very little chance we could cause them to change their beliefs?