"Which men were unable to vote between the 1860s and 1920?"
Most non upper-class men weren't allowed to vote.
I think all adults should vote if they want to, but they should vote rationally.
Regarding Black Lives Matter, I've already said what I have to say on it before, and it is an anti-white hate movement. And once more, I'll remind you that I am black myself, and I do think that all lives matter, but I also know that excluding white people from certain events, looting stores, exempting black criminals from punishment for crimes they commit, and barring white actors from voicing colored characters (not all black people in real life sound like stereotypical blacks either) are not the answer. All races have suffered at some point or another in history. White people have been kept as slaves, both by other white people and nonwhites, and black people have owned other black people. The Irish are a textbook example of white people being treated as second-class citizens in the West. And before you say "black people aren't being given a chance to voice/play characters", yes, they are, including playing in live action folkloric/historical figures who weren't black (such as Cleopatra, who was of Greek descent). And by that logic, should I just let a queer woman have her way with my girlfriend or let a queer man have their way with me just because they're "marginalized" and "not being given a chance at love"? I think not.
"They are increasingly being taken seriously."
That may be so, but female-on-male abuse is still by and large treated as comedic or something that the man or boy had coming even when it wasn't, and many shows and movies that used this as comedy would not even be greenlit if the genders were reversed.
"Where is that happening?"
Here, in America. One time, a man who happened to be blind was recently arrested simply for "looking" at a woman at the gym.
"Not as negative of an impact as treating women as second-class citizens."
When have women in the West been made to pay child support to their male rapists (even centuries ago men accused of raping women faced severe consequences, so you can't use that as an out)? When have innocent women in the West been arrested just because men felt "unsafe" around them. When have women been