Dear native English speakers, would you mind inventing a new word either for gender-neutral third-person singular pronoun, or one for what "they" mean to foreign English speakers since you are so insisted in differing its meaning from the text books you shipped us decades ago?
English is so inconsistent at this point. Only the third-person pronouns have gender in singular form, the plural form has no gender and now you are telling us the gender-less form can be singular now? How confusing!
English is widespread partly because it has simple alphabet and relatively easy grammar. I don't mind someone being in LGBT+ group at all, but could you please don't mess with the language?