I think it's pretty clear what they meant.   It's a bit mean to call you out for downvoting a comment that so many others agreed with but if you don't realize why that happened I can't help you.

I mean out of 27 votes, 23 of them were "Likes" and only 3 of them were "Disagrees".  You're entitled to your opinion but don't be surprised when other people call you out on it.

It's clear that they meant that disagreeing with the comment that says trump is advocating police brutality is a vote for fascism.

Does it really have to be spelled out so clearly for you?