I'd also argue they do put a burden on people, though not an unnecessary one, to reevaluate their thinking and world view. Rosa Parks didn't force a white person to give up their seat for her. But she, and others, did force white people to rethink what they took for granted as the status quo.

The point of the original comment was that renaming master to main served as a reminder for people. But movements in the past that you were referencing never served a goal of solely putting burdens on other people.

To use the standing example, it's like saying that Parks's goal was just to get arrested to burden people with the knowledge of inequality.

If you accept that racial privilege exists, and that it's causes are correctable, even in part, then raising awareness of those helps. This is doubly true if you think that stone of the causes are social cognitive biases, where awareness and mindfulness directly address the causes.