I just read which claim that diversity is key or needed in these companies to make them function more effectively
Diversity is just a globalist code word for outsourcing of jobs to non-white demographics who are willing to work for less money and with fewer to no benefits.
Non-whites who take over the middle and upper management of companies and their Human Resource departments then practice their own racism by hiring their own kind.
Western governments are onboard with this since feminism and abortion rights have killed off natural replacement levels of native majority populations in Europe and North America.
Irredeemably indoctrinated self-loathing Cultural Marxists take to the streets with glee to welcome replacement level migrants because it will keep their classrooms and the shops they own filled with low-wage bums long enough until they can retire (to some last remaining all white enclave of course) while helping to satiate their fetish to be within sight and touching distance of non-white flesh.
women have as much if not more power than us and their voice and opinions
Western nations are gynocracies and have been so since the last century.
Female nagging has simply moved out of their one-time marital homes and onto the public square.
It is the biological imperative of women's hypergamy to demand more and be in control.
Women don't care what a society looks like just as long as their own personal needs are guaranteed.
And if society collapses due to their short-term thinking and self-serving demands that's OK with them because they count on being able to just fall on their backs and spread their legs wide for the next wave of conquerors.