God would not suffer His priesthood to be used by some of the atrocities that were supposedly done in the name of God by some of the people you listed. God took the priesthood from them and they were left to the wisdom of man.
What people I listed? I showed two plaques sharing some historical details of the churches of Rome and Jerusalem.
Also, anything that you cannot prove and instead just assert based on nothing more than your religion's stance towards Christianity can be set aside very easily by literally anyone who has a different stance than you. The crucial difference between you and I, however, is that my stance is actually informed by history (
contested history, sure, but then that would always be the case, since choosing one historical outlook necessarily privileges it over others), whereas yours is informed by
nothing, because none of your religion's leaders have ever bothered to actually look at the historical claims and roots of the preexisting Christian churches, since they've all chosen to believe Joseph Smith's very stupid and very obvious lies instead.
All I'm saying is that anyone with even the tiniest shred of curiosity as to how and why we've ended up with the different churches at different historical centers of Christianity being as they are (which everyone should have if they're going to be claiming anything about the history of Christianity or any of its major figures, as Mormons definitely do) should actually want to find and look at things like the monuments I mentioned, the papyrological evidence for the earliest transmission of the scriptures, the vast collection of Early Church Fathers and other commenters on the life of the Church, etc. As it is, you have in Mormonism a religion that makes a bunch of historical claims about the Church and its supposed 'restoration', but not only
absent the evidence necessary to sustain those claims, but actually against the copious evidence that proves those same claims wrong.
And yet you still expect to be taken seriously. You still want to sit at the adult table with all the actual Christian churches that have real reasons for existing and aren't based on Hebrew Indian magical seer stone gobbledygook.
No. It's never going to happen.
But that's the real reason why you have to believe in 'proxy' work and all the other good works you claim your religion does: because those are in some sense a substitute for being rooted in anything real. It's as simple as claiming that everything that came before you was by its very nature corrupted and based in ignorance and/or wickedness of this or that kind, and then claiming to have the true way that is
totally not-coincidentally built upon the denial of the core beliefs of the religion that you claim your 'restoration' is to replace. The Islamic prophet Mohammed (a.k.a. Arabian Proto-JS) claimed the same by calling all of existence before his own 'revelations' the "time of ignorance", and much earlier false prophets like Montanus also claimed some variation of that during the early centuries of the Church. So since we'd been through this very same thing numerous times long before Joseph Smith came around, why do you or any Mormon think you should be taken seriously when your true religious forerunners (this group of 'new prophets', which were all rejected by Christianity) were not?
Do you think you could've avoided being this easily dismissible by
actually reading about the history of Christianity from outside of the Mormon paradigm before claiming a propos of nothing that Mormonism is the 'restoration' of the early Church? I think you could have, but apparently you'd rather look like an idiot by parroting the claims of another idiot who also didn't realize what an idiot he looked like because he didn't bother to learn anything about what he was rejecting before doing so either.
It's a real shame, this Church of Perpetual Latter-Day Idiocy we know as Mormonism. It could've been mercifully put down at any point before right now by anyone in any position of authority actually bothering to read and learn, but noooooooo, the 'restoration' of the Church (that never actually went anywhere) must continue because...well, because the phony power structure that is built atop JS' foundation of historical illiteracy, racism, bigamy, and lying must continue, or else the likes of Elders Holland, Eyring, et al. might have to actually get real jobs (or just live off their retirement savings, like every other elderly person does) that
don't consist of obfuscating with the non-Mormon public while emotionally manipulating everyone who has bought into JS' lies. And Lord knows we can't have that, for some reason!