That would therefore mean that all bad things must be stopped with full force, because "First they $VERBd the $GROUP[i], and I did not speak out" would apply for the union of VERBs, GROUPs, and possible {i}s.
E.g. in this case you literally end with "Then they DRM'd me". Are you seriously trying to claim that the end state of Mozilla supporting EME is that DRM is used to physically hurt people?
Of course not. That last line is clearly meant to be absurd. I wanted break the slippery slope argument.
What I was trying to do was poke fun at the idea that DRM is okay as long it doesn't affect you directly. You should speak out against DRM, not because it is a slippery slope, but because it is wrong and it hurts people. The reason I think you should speak out against interning socialists is because it is wrong, not because of the slippery slope that it entails.
Then they DRM'd the music, and I did not speak out— Because I have a nice vinyl collection.
Then they DRM'd the ebooks, and I did not speak out— Because I still use public libraries.
Then they DRM'd the news, and I did not speak out— Because I don't read the news.
Then they DRM'd me.