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Neither partner, male or female, should have the 'power' to 'grant' sex.It should be something desired to be shared by both people.
The key word there is "should".
I want you to do a little thought experiment: compare what you would think the success rates would be for a guy simply going up to a random girl and saying "I want to have sex with you", and a girl doing the same to a random guy. Until feminists agree to acknowledge that there would be a disparity (read: imbalance of power) and give honest consideration to it, no progress will be made.