Islam IS wrong about women - one thing, it's good that cheeky messages can start conversations.
Is Islam wrong about women?
Well, Islam says that men and women are different, and that biological sex exists and that there are only two biological sexes. This is in line with all the scientific data: there are two biological sexes (male and female); the two sexes are bimodal, i.e. Homo sapiens exhibits sexual dimorphism. Men and women are different, on average, on many things: height, upper body strength, percentage and distribution of body fat, gametes (which are binary - there are only eggs and sperm), and - as the Scandinavian countries are discovering to their horror - behaviour.
But I also get what you're saying - Islam is wrong on how it views and treats women. Women's testimony being half that of men's is discriminatory bullshit and must be called out as such. Stoning women to death for adultery is Shari3a and therefore part of Islam and must be called the barbaric, religious, depraved bullshit that it undoubtedly is.
All the lily-white Western 'activists' won't touch Islam with a barge pole, though.
Because these activists are basically anti-Western, anti-capitalist loons. Islamists are their fellow travellers on the way to smashing capitalism. Sorry to be cynical, but that's it, in a nutshell.