Courage is based on junk science and a misunderstanding of what make up the family. It’s not sex (which they are obsessed with) but the thousand other details of life that are best done with a spouse.  The basic adult right is to divorce yourself from your family of origin (or divorce your spouse and return to them) and to be one flesh under law.  That does not happen without legal marriage. The Church should get on board (and quit wishing for Trump to save them).