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Same-sex relationships and Utilitarianism

Hi all, I am writing a research paper in support of homosexuality or same-sex relationships through a Utilitarian perspective. My argument is that same-sex relationships can provide the same utility as opposite-sex relationships. Also, trying to force one to conform to one sexuality or identity increases pain instead of utility. I have been researching to see what would be a common objection to this view and how would I respond to it as a Utilitarian but had no luck finding any? If anyone has some suggestions, please feel free to share :) 

Thank you!
gpt
Jeremy Bentham himself wrote in favour of the decriminalization of "sodomy" (at the time, punishable by hanging in England) in his *Of Sexual Irregularities*, saying "to destroy a man there should certainly be some better reason than mere dislike to his Taste, let that dislike be ever so strong". It would therefore seem hard to mount any convincing argument against same-sex relationships on utilitarian grounds, since Bentham seemingly disqualifies the majority's disgust at them from even counting as genuine loss of utility at all, and it's not hard to see why: disgusted though they may be, they do not suffer any harm to their person, possessions, or reputation, nor is there any threat of such harm. The homosexual couple, however, are free to enjoy the utility of engaging in their preferred acts. 

With regard to the suffering inflicted by criminalizing (or at least stigmatizing) same-sex relations, we can look at Bentham's four circumstances of pleasure and pain (Principles of Morals and Legislation Chapter IV Paragraph II) to straightforwardly reason this out:

Intensity: The intensity of the suffering incurred by punishment for homosexuality is often immense, and in some places punishable by death.

Duration: For a homosexual person living in a homophobic society, the duration of suffering for their orientation has a duration of nearly their entire life, since they are forced to keep their sexuality a secret and put themselves at (sometimes mortal) risk every time they want to enjoy it.

Certainty: As with duration, homosexual people living in homophobic societies must keep their sexualities hidden out of a fear that they will very certainly face dire social and physical consequences.

Propinquity (closeness): The propinquity of this suffering is likewise immense, since it concerns not only the person with homosexual desires, but one of the deepest parts of their being, and one of the greatest opportunities they have to attain pleasure.

Even if we do consider the disgust of the masses to be a legitimate loss of utility on their part (which, again, Bentham clearly did not: "let that dislike be ever so strong"), it would be hard to see how that loss would be even the tiniest bit proportional to those suffering under this law or stigma on the metric of any of the four circumstances. The homophobic majority seldom even thinks about the existence of gay people except for brief moments of disgust, but the gay minority must live in constant, intense pain and pleasurelessness because of an irrational prejudice.