Historically, women have been relegated to a minority position (outside the public view, outside the public sphere, outside power) throughout history. In the spheres of power, where the decisiosn are made, they are still a minority.
This is nonsense. Women are not and never have been a "minority". They have occupied a different place and role in society compared to men, but it has always been fully integrated within that society and open to many priveliges as well as restrictions, just as men have (different) priveliges and restrictions.
Women have always been highly valued and protected. Men might have been at the business end of things, and been in positions of overall power (a tiny minority of men that is), but they've also been at the gutter end, taking all the most dangerous and undesireable jobs, used as cannon fodder in the wars of the elites, expected to lay down their lives for any women and children in the vicinity, expected to entirely support families financially etc. Women may well have been historically kept away from the highest positions of authority (that only a tiny minority of priveliged men ever had a hope of attaining themselves remember), and have been treated with the "don't you worry your pretty head about it darling" kid gloves, but they have also always had a greater level of societal protection given to them. They hold all the cards in social situations, they will have things paid for them, they will always get the comfy bed, be shielded from "unladylike" language etc.
There's positives and negatives in all of that for both sexes, and the negatives should be addressed for both sexes (and largely have been for women), but let's not pretend that they were ever a "minority". It's not like women were forced to live separate from men in slums, worked to death in chain gangs, spat on in the street and forced to drink from separate water fountains. To call them a "minority" in that sense is entirely false, the true situation is much more complicated than that and always have been.
But regardless of all that, feminisn doesn't just affect women, it affects society, and therefore men have just as much of a right to discuss the implications of it as women do, regardless of whether women are in the discussion or not. It's not about what decor to have in the ladies rooms, or other such things that have no impact on men whatsoever, it has inpacts on laws and societal norms, the spending of public money etc. I don't need permission to have opinions on such matters.