It's a common saying to never bring up religion, sex, or politics up at the dinner table. Because it just leads to an argument. Undoubtedly, these are incredibly touchy subjects, as everyone has their own unique relationship to it. But they also incite arguments because of morals and principles. One simply can't let a topic slide because it's taboo to talk about. It can boil down to what you believe is right and wrong.
In my own family, I've noticed how different our views are concerning the MeToo movement. Beyond just noticing, it in fact pains me to learn what they think of it as a movement itself and its motivations. But this just comes back to my own unique relationship to that topic versus their own casual opinion to it, without any real stake in the matter.
I believe not speaking your opinion or truth in a conversation because it might upset your friend or family is its own form of self-sabotage. In that process, you can feel shamed or embarrassed. You might be scared to say anything because you want to keep the status quo of relationships. But honestly, in my own experience, if you come to the conversation willing to take the time and patience necessary to at least attempt to change their opinion, establish that bridge, that's better than not saying anything at all.