Or it could be that people are LGBT and can now safely come out and be LGBT? If you look at a chart of handness, as left-hander were no longer forced to be righ

Or it could be that people are LGBT and can now safely come out and be LGBT? If you look at a chart of handness, as left-hander were no longer forced to be right-handers, the proportion of left-handers shot up till stabilizing at the naturally occuring population level. Why couldn't it be the exact same is occurring with LGBT identification?