Actually I think it would be a lot better if all men were shot on sight,... That way we could end war,...
Yes, and there is also a trick to regain your virginity which involves a lot of... ahem.
...then we rounded up all the boys and simply kept them as stud seed...
Ooo, pervy. What would you do with them once they have grown up into men?
... so we could control reproduction...
In all cases of mutual consent (which is how most babies are born), women already have the final say in the matter.
no more acid attacks
In the places where these attacks occur, even men are victims of acid attacks perpetrated by women, although admittedly attacks on women are in majority.
no more raping animals
Many a canines would witness that women are just as active in that department, if not more so, or so I've been taught by the internet (yeesh).
gang rapes of children
...and I quote again: "then we rounded up all the boys and simply kept them as stud seed"
no more Catholicism
Any faith that puts harsh and unrealistic restrictions on sex (which is most of them, if not all) have such stories, but killing all men would not resolve that issue. Decapitation would certainly stop a brain tumor but most sane health professionals wouldn't consider it a cure.
no more honor killings.
Again, nearly just as many boys die because of those, and in most cases, the women of the family are just as willing to pass the death sentence as their male counterparts. Honor killings are a cultural thing, gender is more or less irrelevant here.
Do yourself a favour and look up the history of the various matriarchal societies and you would realise that these societies weren't any better in terms of crime rate, violence or war.