It's a fallacy to suggest that any possible future is a probable future.
I donated blood earlier today. Maybe I shouldn't have because there is a possible future where a newly evolved disease is discovered that is rampant in sterile needles, lays relatively dormant for 10 years in people, and then kills them.
Persecution of minorities is not a possible future, it is a fact of the present. It was even worse in the recent past, and what progress we've made is not the result of predestined change in sentiment but of prioritizing civil liberties instead of the boogeyman of crime and moral degeneracy. You don't punch holes in the levee after the flooding stops.
I donated blood earlier today. Maybe I shouldn't have because there is a possible future where a newly evolved disease is discovered that is rampant in sterile needles, lays relatively dormant for 10 years in people, and then kills them.