Don't those piercings heal over eventually if you stop wearing earrings? Though I imagine it might leave some nasty scarring.
Anyway, re: focusing on issues. There are only two real justifications I can see for "focusing" when discussing social issues like this.
1) If we're simply conveying information, it's best to talk about related things rather than jumping all over the place. If you're studying history, you might focus on the roman empire for a while before going to ancient china, not jump around the world at random. Similarly, if you're discussing social problems, you'll probably want to stick to one group at a time, eg: women, gays, etc.
2) Avoiding dismissals. "Someone else has it worse," "similar things happen to everybody," and all that stupidity. If I'm discussing male circumcision, I don't want someone to barge in and bring up female circumcision to dismiss the male type as irrelevant. There's a case to be made for triage (deal with the worst and/or solvable problems first), but generally there are a lot of people who bring up irrelevant things simply to dismiss valid complaints.
On the plus side of bringing up other groups, we can find common ground and common enemies. There are many things that hurt women more than men, but bringing up the things that affect men too can add people to your cause. Whether that's appropriate or not depends on the situation (probably not all that appropriate for this thread, barring a few things).