Christianity is a difficult topic. If only our dominant religion was one rooted in ancestor worship like the Hindus.
Christianity is an effective tool against 'degenerate' values. However, it alone was never the foundation of our ethnic identities or traditions. The religion was simply a far superior and comprehensive philosophy compared to anything we had at the time.
We've seen throughout history that to supplant this lack of an ethnic element, different nations adopted their own subset of christianity. Most often, the nation chooses the subset different from their neighbors to build up their identity as an 'other'. In that sense, Christianity definitely had a proxy effect of racial cohesiveness.

What does the current age require? A belief system that strengthens racial consciousness to fight the hyper-racialized tribal era we've entered. One that addresses the crushing economic equality many of the working class feel. One that serves as a good rallying tool against the astronomically wealthy, often globalist elite that seek to exploit our people at every turn.

Until Christianity adapts to address these salient issues as it's done in the past, I really don't see a sudden revival, unless it's used alongside nationalist, ethnic philosophy like it's been done in the past. Christianity is exceptional at allowing individuals to go through tough times surrounded by death and war, at uniting disparate peoples under a common aim. But unlike Judaism, it's not particularly suited for protecting ethnic identity and traditionalism.

I understand the reaction towards paganism in response to this, but paganism is too minor, its belief system of bloodlines and ancestors are well suited for the current struggles, but its philosophy isn't sufficiently built up. It could theoretically re-surge over the next centuries together with comprehensive philosophical points to build on the moral foundations it provides, but I don't see this as a realistic short to mid term solution.