Primarily debate around Christianity in right-wing spaces revolves entirely around,
>Is Christianity Jewish?
and
>Is Christianity supported or opposed by Jews?
But very few debates are just about Christianity's values and its usefulness in regards to movements that are ultimately White identitarian in their true values and goals. And in these two senses, Christianity is an obvious failure whether it's Jewish or not, and whether Jews like it or not. Consider the following:
Christianity's most holy of holy texts are the Gospels. One can presume that if the Gospels say one thing and for example Saint Clement of Rome says a different thing, that the idea in the Gospels will win out over the ideas of Saint Clement of Rome. Even Clement himself would grant this. So if two competing ideas are in conflict we can presume that the version of the idea in the Gospels will defeat the idea added later, whether in other books in the New Testament or writings from later Christians. So if you have writings from a crusader in the Middle Ages, great, it does not override what Jesus himself said and did in the Gospels.
What the Gospels teach better than anything else is forgiveness, compassion for people different/lower in status than yourself, teaching, healing, giving to the poor, healing the sick and pacifism. Forgiveness is Jesus's most common activity in the Gospels. Many stories and parables are centered around demonstrating that people who normally would only get scorn, such as members of rival ethnic groups or tax collectors from Rome or sinful women, are instead treated with grace and dignity by Jesus. He forgives their sins. Jesus also spends time teaching at the temple, he drives out demons, heals the sick, distributes free food to crowds and raises at least one dead man. And in the final act of his story, he allows his enemies to kill him by crucifixion.
What is notably absent from the Gospels are any of the following; insular group identities, veneration of strength, justification of violence, or any drive toward worldly domination. Jesus's stories about getting along with Samaritans or tax collectors are purposefully arranged to sidestep the more instinctive sense of "in-group" and "out-groups" that we find in all human societies all over the world. Jesus in one gospel whips some people out of the Court of Gentiles one time. In every other instance he not only avoids violence, he corrects those who do it; the story about the disciple who sells his cloak and buys a sword says exactly that. Jesus reminds the disciple that if he wanted to win by force he could summon a legion of angels at any time. Jesus specifically states in the Beautitudes that he places the weak over the strong and the disgusting over the beautiful in heaven. He tells his disciples to throw away their earthly things and the story of the rich young man also communicates that Jesus doesn't just ignore material things, he says merely possessing them threatens your eternal soul. And of course the end of the story is that rather than dominating others, Jesus allows himself to be crucified. He does rise from the dead, but it is for a few days, where he travels around in secret and then ascends to heaven with all of his enemies unpunished. Even Judas Iscariot has to punish himself rather than being punished.
The direct and plain reading of the Gospels is that if you're a Christian who follows Christ and thinks he's the most moral person to have ever lived, your goal is to be as meek, poor, giving and forgiving as possible. It is your job to be like the priests and monks through the ages who have allowed themselves to be killed in service of the faith or simply dedicated all their time and efforts to others, no matter their race, sex or creed.