I’ve often pondered about how Vulcans view gender and sexuality.
I think pre-Surak/logic, they may have demonstrated homophobia and transphobia, but modern Vulcan Society would probably be chill with it under the reasoning that discrimination would reduce a person’s efficacy as a functional member of Vulcan Society. For instance, given a choice between allowing a person to contribute verses driving them to the brink of suicide, Vulcans would probably tend to lean towards the first option.
There could very well still be stigma (Vulcans are far from a perfect society; some may have views that it is illogical to have a romantic relationship without a child), but it’s dampened by the logic from the previous paragraph.
There’s also the Pon Farr to keep in mind. Not only would it be hard to fight a person in the Ponn Farr, but also you’d literally be killing them by trying to prevent expression of their orientation.
I see little grounds for this assessment.
Vulcans not only recognize the immense complexity of the mind, but they also recognize people have a soul (their Katra). Why would it be “ice cold logic” to decide that the physical body, not the mind or soul, determines what a person truly is? Especially in a technological context where elaborate reconstructive surgeries are trivially easy.
Vulcans have preferences, desires, and needs that we would describe as emotionally driven. Vulcans clearly do not consider these to be emotional in nature. Despite practicing arranged marriages, the actions of those Vulcans whose lives we see into (Spock, T’Pring, Sarek, T’Pol, etc) clearly show that they are not strictly beholden to such arrangements, and value forming romantic partnerships with people they are attracted to. Likewise, the need to occupy the correct type of body, and by referred to by the correct name and correct terms, would surely be understood and accepted without difficulty.