But it is true that the word "slave" makes me feel bad about my Slavic ancestors being enslaved, and it makes me feel even worse that the name of their tribe has become to be used for such egregious practices. Not enough for me to complain at several language standards bodies, though, and I do understand the history of it. Just like Slavic people calling Germans "mutes" (Nemci) is offensive too, but as neighbours, they either met people who used "words" (slovo) or were unintelligible (nem meaning mute).

And I get your argument (yes, I am free to fight for the abolishment of the word "slave" in languages where it's derived from the root Slav), but "forcing" here is indeed happening through somewhat modern means: public, online, armchair shaming and harrasment. If you do not see that, you are dishonest imho.

As a case in point, you come with an argument how the word "master" (which is what the OP was about) is "making people feel bad" (I blame all those MScs too), but are you offended by it? Or at least heard from someone directly who is? Read an actual piece where someone describes it is so? If you do, please let me know that's the case, since otherwise I can only assume your goal is to shame me into appearing as if I have no empathy. If none of these, who are you arguing for?