"the argument that it's for our own good." is their instance that we should accept this loss of our freedom to run the software we want because it protects us. It doesn't actually protect us though, so it isn't worth it and we shouldn't accept it.

My original statement had nothing to do with motorcycle helmets, but if using them required us to give up enough of our freedoms they could also become unacceptable for the level or protection they provide (or fail to provide) us.