@indecisiveavocado I feel like this was a slight subject change so I wanted to address it in its own reblog chain.
Mormons practice a universal form of baptism for the dead. It is one of the rituals performed in the Temples. By "universal" I mean that any names of any dead people they receive are submitted to the ritual.
They get proxies (Mormons who are worthy/able to enter the Temple) to enter a baptismal font and they do the exact same prayer for baptism of a living person, except for the part where they say "I baptize you in the name of Jesus Christ on behalf of [name], who is dead". I did this ritual once when I was a young teenager. You get dunked a bunch of times; I didn't count but it felt like about twenty. After that, they give you a blessing that's supposed to seal you into membership--again, giving it a bunch of times and each time substituting the name of a dead person.
Theologically, this practice does not make the dead person Mormon. The church teaches that people go to a "spirit prison" which is basically purgatory if they were not baptized. Once they are baptized by proxy, the dead person is given the option of accepting or rejecting the baptism. Rejection would mean being sent to "the outer darkness" entirely out of G-d's reach and if you persisted there, cessation of existence; acceptance sends you to one of several afterlives of varying positivity. When I was attending, hell wasn't really a thing and the ability of the dead person to consent was emphasized. That those dead folks were being coerced by cessation of existence was, naturally, not emphasized.
Jews were not specifically targeted for this practice; they do it for everybody. This is why Mormons are obsessed with genealogy. Trying to baptize all their dead family members who were not Mormon. However, once they run out of relatives, members frequently turn to public records to add individuals to the list of folks to be baptized, and that is where the problem arises. Not only are the dead incapable of consent, but their living relatives frequently also object, since the ritual is more or less necromancy with a lot of biblical language papered over it.
A lot of it is laziness on the part of the church leaders. People submit names and no one checks on them beforehand. They only started removing the names of Jews when they were caught doing it, which started happening in the 1990s IIRC. Jews who were listed in the records as having been baptized include Maimonides and Einstein. Anne Frank has been posthumously baptized NINE TIMES, most recently in 2012.
The church insists that baptizing dead Jews has ended but also insists it's impossible to stop people from submitting "inappropriate" names, which I think we all know is bogus. In the 2010s Jewish groups announced that they would stop trying to negotiate with the church since they broke every promise they made about it, and instead said they'd appeal to the court of public opinion.
There is a not-unfounded fear that at some point Jews who died in the Shoah will be declared to be Mormon victims of the Nazi regime in the future thanks to their baptism.
However, Mormons differ from Jehova's Witnesses in that, while some of their teachings regarding Israel and Zion were forbidden, the Mormons got along with the Nazis pretty well. Mormonism teaches its people to be subject to the government and they leaned WAY into that during the Third Reich. The Nazis also liked genealogy and gave records to the church so they could build family trees validating racial purity on the Nazis' behalf.
It wasn't all easy for them, but it was a far cry from other tiny religious groups' treatment in Germany, much less the Jews. Any Mormons who died by Nazi hands did so because they broke with the church's policy and objected to the treatment of Jews.
For whatever it's worth, the church does teach this part of its own history accurately. I heard it from the pulpit as a child as a shameful part of church history. Current educational materials on the church website confirm they still teach it. This is a rare moment where the Mormon church did not invent a story of persecution to excuse itself from incredibly shitty behavior. To claim Jews as Mormon victims of the Nazis would require them to first invent a story where Mormons were victims of the Nazis, which is possible, but not currently being done.
I still say the fear that the church will do so in the future is not unfounded because, well, given their track record, why would anybody trust them?