That's what they're trying to do. In Mormon theology everyone who dies without a chance to be baptized must be given a proxy baptism by someone living, so they have a chance to accept the gospel in the afterlife. The goal is that this will eventually happen for everyone who ever lived. (Source: former Mormon.)
Correct. Proxy baptisms are never considered to make someone a member of the Church, precisely because it is not possible for the earthly Church to confirm with a dead person that they have given their consent. It is merely considered to make the opportunity for giving consent available to the person in the afterlife.
Why does it require genealogical research, though? Can proxy baptism only be performed by living relatives? And if not, then wouldn't just knowing the name of the person suffice? Or, for that matter, wouldn't any way to unambiguously identify them?
In practice, you just need the name and birth year and maybe another detail or two. And a recent rule does require that members focus on their own ancestors.
But the point of the whole thing is actually to spend time learning and researching your family history. In other words, the literal posthumous baptism is not the point. That's the ritual. It's what to learn and do along the way of accomplishing the ritual that is the point.
I’m a Jewish atheist and the first time a couple Mormons knocked on my door and explained proxy baptism to me my first reaction was to be taken aback. But hey, may as well cover all my bases right?
It sort of addresses a fundamental issue with a lot of Christian religions that teach that people who never had a chance to hear about Jesus and be baptized automatically go to hell. There's a lot I dislike about the Mormon church and its doctrine, but the Mormon conception of the afterlife is quite a bit more fair than a lot of other religions.
Note: in Mormon theology, those that die and receive their baptism by proxy still get to choose to accept or reject that baptism in the afterlife.
> It sort of addresses a fundamental issue with a lot of Christian religions that teach that people who never had a chance to hear about Jesus and be baptized automatically go to hell.
This always struck me as one of the most stupid and illogical tenets as it's in opposition to the concept of loving and just God: why create millions of people who have no chance to meet the Gospel, and then automatically condemn them to suffer forever, just like that, for nothing? It really makes no any sense! And yet, the modern world lives on remnants of these ideas.
Most Christian denominations do not believe that those who are unaware of Christianity automatically go to hell. They usually say that it's down to divine providence and God's mercy, and that it's pointless to speculate beyond that, those being ineffable and all.