> “It is very upsetting for people who have grown up and lived for years believing that they are of a particular sex to suddenly discover that they are actually of the opposite sex. This can be a relief but can also be a loss. For most people it comes as a shock that upends their whole identity. Coping with this can take years,”

I find this statement odd. Haven't we already established that chromosomes do not determine gender? What more is there to cope with beyond a simple genetic abnormality. It's not like discovering this means they suddenly have to register as the opposite gender or use a different bathroom. It's like taking a 13andme test and finding it hard to cope that you're 10% asian.