If I use 'sex role stereotype' as a synonmym for 'gender' your questions become:
Do you think the majority of people are sex role stereotype critical, and why/why not?
Not sure. Half the people are men, and the stereotypes have served them well for millennia. Women, less so. Feminism still has a lot of work to do worldwide.
Globally, the right wing is more vocally sex role stereotype critical than the left.
Oh No They Are Not. They really really are not. The love sex role stereotypes. Genderism is an extremely regressive and repressive ideology, one of a number of reasons one powerful and vocal subset of its enthusiasts is rich white middleaged men.
They are also far more likely to be regressive on a range of women’s issues like abortion and anti-gay. Why do you think they agree with those who reject sex-role stereotypes on this one issue but disagree on so much else (if you think they do?)
I don't because they don't.
How many trans people do you estimate there are globally?
How long is a piece of string? Define 'trans person' - break that down by birth sex, age, race, social status, access to money, continent of residence.