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sree251 we can invent whatever secondary purpose we like, but this doesn't change how our most fundamental purpose is to reproduce and take care of our offspring. This applies to both men and women, because together they have made their children.
I agree with you on feminism, at least with regard to the less desirable aspects of it. I don't see any reason why women shouldn't be able to vote and make decisions about their lives.
However, to use one example, it has increasingly been the case that "forced equality" in the academic and corporate fields has been prioritized, and this is not fair, and not ethical. It is always questionable when the state and private businesses have to make a concerted effort to attract and employ women, with these jobs often being the more favorable and well paid ones. This is especially bad when, in some instances, they have to make adjustments, or it produces mediocre results.
In relation to your OP, I'm not sure why anyone would think it's only a woman's role to ensure the physical and moral well-being of humanity. This has to be shared.
Although...I would add that it's not really our concern what other people do. We should be free to think and do as we wish, as long as we aren't physically harming anyone else.