It's not the law's function to adjust the punishment to subjective view of the punished. Otherwise, you could argue that heterosexual people deserve lighter prison sentences than bi- or homosexual, because sex 2ith the same sex is much easier to obtain in prisons and therefore prison time is harsher on heterosexuals. For the record, I think this example is absurd, and I'm just using it to highlight the kind of absurdity your logic leads to.