Dr. Dwayne
Self proclaimed tagline king.
Protestors always seem to lose in the short term by way of getting arrested, fined, or beaten up, and more recently losing their jobs and the like. Some such as those you listed may be eventually vindicated, but there are also recent examples of protests that haven't really amounted to much in terms of tangible change - thinking of everything ranging from occupy wall street to the string of protests from Trayvon Martin through George Floyd.
They do lose in the short term for sure.
I'd be inclined to argue that the George Floyd protests resulted in positive change, though.