Like hell.
Look, it's real simple. There's false religions and there's fake Christianity. Christianity proper is defined by a person submitting to God as their master of their life, they don't choose their ways and ideas anymore they choose to obey and follow His as laid out in context of scripture. They follow Jesus as their king and master, the second person of the triune God described in the text who put on human flesh and succeeded everywhere Adam failed us, and then laid down his life willingly as a sacrifice to atone for the sins of mankind, being the spotless lamb of God. (without sin) Finishing it on the cross as you can not earn or add to your salvation through him. You're in or you're out, your adopted or you're a child of your father the devil. (we all were, hence adoption) Being given a new heart and made a new creature or you're still just the old corrupt flesh spiritually dead.
So be it JW's, Mormons, Unitarians or dare I say and I do dare, Roman Catholics, they're all heretical for various and different reasons. Because they each reject Jesus and what he did in part of full, some even make up a completely false version of him. Genuine Christians look at the historical biblical Jesus/God and submit to Him. THAT's a Christian. Anything else no matter how much they scream they're a christian, they're not.
The only other group that counts, is Messianic Jews, they actually accept Jesus as their Messiah. So they're our brothers in Christ. But we are not them, and they are not us, we're gentiles grafted in (hence the adoption language). I could go on but I hope you get my point. There's a reason all the fakes try to incorporate either the Bible or a version of Jesus... because the genuine article is what gets faked.
The most fake may well be the prosperity gospel so prevalent in America.
Dude, with respect I think if you start railing against just about every other Christian group except yours, you might need to step back and think that the problem might be you. Especially your whole trying to blame "Christians" for "oh look Hitler".
What next are you going to start suggesting Stalin, Mao, Pol Pot and others where "Christian" now to advance your hatred for denominations that are not yours?
WWII Germany didn't have anything to do with religion nearly as much as simply the fact that the Germans much like the Japanese are very much a culture of "obey the government no matter what".
Also YOU and your denomination don't get to say who is "Christian" and not, If you believe in Jesus Christ and take His name upon you, you are "Christian" regardless of your doctrinal differences or differences in how you might understand God our Heavenly Father and Jesus Christ His Son.
In your whole "messianic jews" screed you miss an important point right from your bible (or maybe it's missing from your translation)
"There is neither Jew nor Greek, there is neither bond nor free, there is neither male nor female: for ye are all one in Christ Jesus.
And if ye be Christ's, then are ye Abraham's seed, and heirs according to the promise."
There is no "Christian Jews" or "Gentile Christians", if you believe in Jesus Christ then it matters nothing about what other ethnicity you might claim.
There is no advantage or disadvantage either way and to try to say you are "more special" or "different" or "not them" or that it's "them and us" is wrong.
ALL are the same in Christ Jesus and bloodlines don't matter.
It's sad that you seem to have a lot of hatred and distain for other denominations not your own.
Some of those same ones you rail against are happy to call you fellow Christians and happy to join beside you in common goals even if there is a difference in understanding, because they understand that you don't have the fullness of the Gospel because of what you have been taught and that one day either in this life or the next life, those differences in understanding will all be made clear and all who will receive it will be given the fullness of the Knowledge of our Saviour Jesus Christ and God our Heavenly Father.
You'd probably find some of those you rail against actually are more accepting and more Christian and more Christ-like than it appears your own Denomination.
I don't agree with quite a few of your points on things, but I'm still happy to call you a fellow Christian if you believe in Jesus Christ and take His name upon you. Sure I'd like to help you see the fullness of the Restored Gospel, but if not, it's not a big deal because through faith in Jesus Christ, ALL who will believe in him will come unto him. It doesn't mean we have to agree on everything and accept each other's doctrines, but it means we should act as fellow Brothers and Sisters in Jesus Christ. You don't have to like everyone in your family, but they are your family and causing strive and contention in your family is never a good thing.