Wow Zaide your opinion is incredibly unique. Did you develop that carefully crafted, one in a million opinion all on your own or did you parrot it from the other 10,000 times you read it on the internet
I don't see what's wrong about it, however.
Equality in jobs would come from giving women and men the same opportunities to reach their dreams, and not discriminating at all regarding sex, origin, etc. And obviously, by offering equal salaries for the same jobs.
But forcing a "ratio" like that is not giving opportunities like I mean; it's handing them. Let's say I'm one of those companies, and need to hire/promote 8 new board employees. Assume that this is a company that has no history of sexism, xenophobia, whatever. They want the 8 best employees possible for those jobs. After weeks of interviews, they come to the conclusion that out of all interviewees, 6 men and 2 women are the most qualified, by far, above the rest (ie the 9th most qualified doesn't even come close to the 8th). What is fair, in that case : Hiring the 6 men and the 2 women, since they are the most suitable for the job, or telling 2 of the men "Sorry, we would have hired you, but because of that ratio law, we will have to hire 2 women that are much less qualified than you" ? You can apply the scenario the other way around, if you want (6 women and 2 men).
Obviously, by offering equal opportunities to grow as a worker (starting at school), this is not likely to happen in the futur, but could. The only things that should matter for getting a job should be your resume, and nothing else. Not your age, not your gender, not your race, not your size, etc.