There's a tendency of certain Westerners to consider the myths of others are being more legitimate to the point where (in New Zealand) it's taught in schools alongside "Western" science [1].
[1]: https://www.nzherald.co.nz/nz/how-matauranga-maori-is-being-...
I've always considered this is a subtle form of othering in which the cultural left indulges.[1] It's really unfortunate and no less alienating than more obvious forms of othering.
A related phenomenon is the left (as well as non-religious more generally, not all firmly steeped in the leftist milieu) feeling entitled to criticize or diminish otherwise similar religious practices found within the dominant culture they were raised. Standing alone it would fit into a millennia-long vein of intellectual discourse in the West[2], however in contrast to the noble savage gloss given non-Western cultures it becomes intolerably hypocritical.
[1] Relatedly, for years I've considered figurative use of words like "legitimate" and, especially, "authentic" as signaling and reflecting dubious modern cultural value judgments. These modern cultural concepts have been internalized across the political and cultural spectrum in the West, especially the rich West. Learning to spot this language is a good way to identify B.S. in politics, philosophy, business, marketing, and almost every other area of life. (Conversely, when you're feeling evil you can use these words to great profit in rhetoric.) In this case I understand you're deliberately echoing others' verbiage.
[2] See, e.g., https://en.wikipedia.org/wiki/Lucian, but such religious skepticism and satire goes back much further.
Specifically calling out some personal gripe about the “left” definitely falls under this admonishment.
Due to the numbers of viewers, if even a fraction of people start posting whatever gripe about left/right that comes to their mind after each comment like here, then this place will be unbearable. Hence the guideline admonishing against that.
It’s like standing in a group talking and then going: “hey this topic reminds me about how a third of you people, which I’m not one of, do this and this bad thing, isn’t that annoying?! Haha you people”
If we engage in a little bit of theological scholarship then it becomes clear why the trust in our own myths can sometimes be low. In the history of Christianity there has been so much political maneuvering and power play involved in the way these myths ought to be told or not told that most people question any truth those myths could hold purely on that fact alone. Then you also have devout Christians who would probably call Jesus if he was reborn today and said precisely what he said in the bible a socialist. So if the long history of the church and its religous wars didn't scare you off, the "Christian Love" of the loudest believers might just do the trick.
With other cultures we don't know all that political bullshit and scheming which mind lurk behind their myth, so we have a different, less negative look at it.
Its amazing how the right(or the religious more generally) feel entitled to diminish the self-agency and self-ownership of people who live in the same state as them because they fell they dominate and own the culture that "raises" those people. It reminds me of the certain ideologies that sees the whole chinese diaspora as some how being property of the PRC.
https://www.nbcnews.com/news/world/fact-check-does-texas-tea...
similar tendencies.
Instead, what would be a good comparison in the USA are those Native American activists who insist on the truth of their founding myths that the Creator created them where they live now, and that their ancestors did not migrate from Asia across the Bering Strait.