"I love how bethesda assumes everybody is straight.'
According to the majority of studies I've seen over the past 30 years or so, more than 99% of the world's population IS attracted to the opposite gender. It's a natural instinct that assures survival of the species.
What is Bethesda supposed to do? Pretend they don't know that.?
This is part of my specific field of study, and I would say that the studies you have seen are extremely biased in various ways and do not reflect reality at all. One example of such bias: the US Census only offers a choice of male/female six (misclassified as gender, which is not the same concept of physical sixual identity). The misclassification biases the data anyway, but there is a bigger problem. The choices exclude all the intersixed/transgedered individuals, thus perpetuating the idea that such people are "other" and somehow not worthy of equal consideration when deciding on political voting power and financial resource distribution (the two main categories of federal influence that the US Census is used to decide).
The ethnicity question is the other horribly biased item. Not surprisingly, it changes every 10 years when a new census is done.