The problem with your "negative" vs "positive" distinction is that it's quite subjective and not at all clear cut.

> “We want to empower marginalized groups” is positive and doesn’t bother that much people who.. don’t think it’s necessary, because it’s not a political position you can disagreee with per se

There are groups who have very big problems with this statement per se. See the numerous court cases over the past decade challenging affirmative action in university admissions. Many view helping one group as oppressing another (a view I find quite misinformed given the inequities in our society, but not completely irrational, given bad priors).

Maybe what you're trying to get at is progressive politics vs. oppressive politics. This distinction I can understand more clearly, however when you choose to oppress a group that is oppressing others, maybe this is justified?

For instance, banning ISIS from access to Twitter seems like a pretty morally sound decision to me as an American. Given that, is there really a difference between banning ISIS and banning white supremacists who discuss violence? Or Presidents who promote violence against journalists? What's the moral outcome of NOT banning any of these groups?

Any choice, including choosing not to act, is morally liable. I think Gitlab's stance here is quite morally lazy, if not wrong.