Husband and wife are not the only words they’ll go after.
All words referencing relationships that also identifies the sex of that person would need to be modifies, such as, aunts and uncles, grandfather and grandmother, nieces and nephews, mother-in-law and father-in-law, son-in-law and daughter-in-law... and others.
How about man, woman, male, female. Got to change these sexist words as well.
CC