Canada is the first country to provide census data on transgender and non-binary people: "Of the nearly 30.5 million people in Canada aged 15 and older living in a private household in May 2021, 100,815 were transgender (59,460) or non-binary (41,355), accounting for 0.33% of the population in this age group."
As someone who lived in Thailand for a few years, I'm going to tell you that you are totally wrong.
Thailand has a total population of 71.6 million.
While I think it's an interesting question, I am not sure what this means. I can list plenty of other things that are temporally-localized that are more likely to explain an increase in diversity of sexuality and gender in modern societies, but I am more curious how transgender folks are affecting* economies.