The working world, when it was male dominant, was 100x more fun to work in. Guys could "shoot-the-shit" with each other, say whatever they wanted and competitiveness was seen as fun not as "toxic". The work environment when it was male dominant made people better because the men would compete with one another and strive to improve. Work was actually a lot more "fun" and in some ways it was a "safe-space" for men to get away from all the drama and toxicity that existed in their personal lives.
Women have utterly destroyed the workplace. Men's lives are inarguably much worse with women in the workplace. Nothing good has come of this.
I've noticed another advantage to the slightly hostile competition in male only spaces, things like light ribbing, making fun of one another, and crude humor. It strengthens the men in the space and weeds out weak individuals, that could bring down the entire group. It also helps build camaraderie. I'm pretty sure it's a genetically learned mental trait to increase survival.