i'm a korean. who starated my spiritual experience as protestant christian. and christianity in Korean can not merely conceived as "western religion". my turning to Buddhism in fact was almost the same to what "new buddhist" in western world experienced.. and as many dharma friends mentioned above, we Koreans, Chinese, Japanese's oroginal religions-shamanism, premitive Taoism, premitive Shinto - have nothing to do with Buddhism. but after we accepted buddhism, many concepts of buddhism introduced into our culture- the concept of samsara, nirvana, suffering - and in fact. Christianity,or Abrahamic religions are asian religion too.. as a catholic, when you saw the Coptics pray prostrationg in front of altar, could you feel that they are "Europeans" ? merely because they are Christians? can you imagine the Malaisians, indonesians, Uzbekhistans, Khazaks, pakistanis, Afghanistanis used to be Hindu of buddhist? The Celtic, Germans, Skandinavians, Lituanians were not Europeans before accepting Christianity?
the "Culture" will change all the time. just like Lord Buddha said...there is nothing permanant...some years ago, there were a fierece debate on cultural identety in South Korea,, that is " as a MODERN Koreans, we are the decendants of Decartes or Yi hwang(famous confusinism scholar in the 16the century)?" at that time i felt it's just funny because confucionism was imported from China. but conceived as "Ours" but why not for Decartes?
even before the 4th century, almost all of european ancestors were not Christians. i think it's cultural or collective ego, just like collective kharma. and i can see western buddhists are in the process of making thier own buddhism. many relatives of mine live in California, so i visted them several times, then i found that the Koreans always go to Korean church, Korean temple only. they don't go to western church.. even those 'western" church itself devided into "european church", "afro-american church" and so on.. and the the atmosphere of Dharma centers for Westernsers and that of Immgrant temples are totally different. many Asians even can not try to attend dharma talks in Dharma centers.
of course there may be some asian factors in western dharma centers too, just like Catholic chrch in South Korea have many latin-italian word in thier ceremony. but i sometimes imagine, in the 4th century, how the roman-citizens felt about "Amen", "Hallelujah" , when they heard it at the first time.. sorry for my bad english. but i think the immpermanance of every thing is the core of buddha's teaching.
greetings from icylake