It's always the patriarchal conquerors like the Ancient Romans or the Ancient Greeks that they idolize and never the people like, say, the Picts or the Celts or the Gaul that rebelled against the brutal Roman empire. It's never the Scottish or the Irish heroes who fought back against the British Empire that followed in Rome's footsteps. None of them probably even know who Boudica is.
Ironically, a lot of the stuff you could call "white culture" was burnt at the stake, banned, brutalized, and literally demonized by the Empires that chuds think are so civilized. A lot of pagan culture was lost to time, or warped by Roman 'scholars' for propaganda purposes. If they truly cared about their 'culture', then "Muh Christian trad wife' would be seen as killing the identity of pagan women, rather than an aspiration.
I just don't think you can meaningfully delineate things like that. The church has spiritually and mentally uplifted many people, as well as holding back others. Some of them obsess over the enlightenment and think we should go to that. Take Marcus Aurelius. He was literally an emperor of Rome, and we have his stoic diary for reading. Many fascists and right wing shit heads read that, and retain their views. But I've met some left wing people, and some at least anti-bigot people, who read it and found it deeply inspiring. Lots of queer people grow up finding something fascinating in Greek mythology, just as do the bigots. Shakespeare is not a bad thing, but right wingers flock to it or sometimes despise it. I'm sure there are return types who like Blake. Casper David Friedrich was an artist who the nazis used as an example of great German art. He wasn't a fascist, but his art was used by them. Now it's more broadly enjoyed again.