"And the problem there is the presumption of innocence."
Actually that's not the only problem. The other problem, is the presumption that women are in a permanent state of consent and that unless they can prove otherwise, you have to assume as a jury that a woman consented, even though she is telling you she didn't.
So any of my male neighbours could knock on my door, if I let them in (and there's no reason for me not to) and one of them rapes me, the law basically says that I haven't been raped, because I can't prove that I didn't consent. It doesn't matter how repulsive the neighbour is, it doesn't matter whether he's got a partner and therefore I mgiht be assumed to not be interested in having sex with him, it doesn't matter if I have a partner and therefore might reasonably be assumed not to be interested in him - no, I am automatically deemed to be in a state of consent, unless I can convince a jury that no I wasn't. Which I won't be able to, because the rape myths tell them that I am unreliable, hysterical and don't know what I want and as everyone knows, women lie about rape (except that the reality is they don't - only 4% of allegations of rape are false and those are mainly women with mental health problems who don't actually name a perpetrator).
Basically, in effect, it is nearly always legal to rape women in this country. Because of the default premise that a woman is always in a state of consent, unless she is actually asleep or in a coma, or in a state where she is unable to consent to sex, but you cannot prove that you were too drunk or high to consent and you cannot prove that you were asleep, so basically most times.
That might go some way to explain why feminists are so angry about rape. 1 in 4 of us are raped or sexually assaulted, and practically none of us get justice.