Typically-- when all is working as it should-- the profile that is project protected is the lowest-numbered Last Name at Birth (LNAB) profile, and all dupes should be merged into that one.
Sometimes, a profile is protected before finding the lowest-numbered LNAB. Or there's conflict about which spelling or which last name... etc... in any case, the goal is to find the LNAB -- whatever the name or spelling-- and merge all dupes into THAT one.
Anyone can help by proposing or even completing merges; Your help is VERY much appreciated.