I'm more exposed to American conservatism. And even here I barely understand it. I used to be Christian, but I left the religion before I realized I was bi, and before I knew genderfluidity and trans people existed.
I guess I'd have to know why individual religious groups, countries, cities,(etc...) have anti-LGBTQ beliefs. Maybe there are no blanket statements that properly address it for the entire world.
Gender and sexuality was already pretty cisheteronormative in Christian Europe from my understanding. Contrast this with other societies that have several gender roles. Capitalism in Europe led to the traditional extended family structure developing into the nuclear family, further reinforcing the gender binary. I am not sure if this was inevitable due to capitalism, or a consequence of capitalism developing out of European culture. Either way, it was then forced on nearly every other culture in the world. Nations were either colonized and had much of their culture suppressed, or Westernized themselves as part of their industrialization. Conservatives are defenders of capitalist ideology, thus they love the nuclear family and hate nonbinary (neither cis male or female) gender. Genuine reactionaries - that is, people who want to truly go back to pre-capitalist society - don't really exist, and the closest thing are the trads that pick and choose, like stanning both absolute monarchies and nuclear families.
I'm having a hard time connecting exactly how it's capitalist, other than the thread about breeding programs and the fact that capital demands expansion across more land for more resources through colonial projects.
The influence of capital has been difficult for me to grasp because I have a hard time putting it in words for myself.
The theory, I believe, is that the nuclear family is very useful to capitalism because it breaks the bonds which form larger communities. If your family is the largest social group (outside of the nation itself) that you are part of, the largest group in which you are expected to protect other members and vice-versa, it becomes very difficult to organize and easy to see everything as a competition mediated by the market. Additionally, the patriarch dominates social reproduction, protecting his position of power by attempting to reproduce his ideology in his offspring. At the same time he is weakened in greater society due to his alienation from both his peers and his own family.
Basically it carves humanity up into small cells which are inherently desperate and alienated, making solidarity almost impossible.