That might be true if there were millions of people practicing a school of Christianity based on only what Jesus taught. As far as I know, there isn't, and isn't even a school based on that. Aside from that, what's described in the article is purely a western phenomenon that has emerged mostly in the last 20 years. It's arrogant (op) to pretend that that is Buddhism. They were in simultaneously critiquing it and participating in it.
I don't see how that's different to the various flavours/sects/variants/traditions that arose around Buddhism in the past. Californian Buddhism is one more to add to the list.
But this is how it always goes with religions. There is never a definitive core belief or core morality that everyone agrees with. Religions are meta-moralities that allow participants to feel credible and sincere because they're doing whatever they're doing under the cover story of a tradition.
Sometimes the results are humane, sometimes they're horrific. It's exactly that flexibility and the lack of clear unquestionable definitive absolutes that allows these belief systems to persist.
Everyone assumes their interpretation - or at least their process - is the only correct one, and all those other people are misguided at best and just plain Doing It Wrong at worst.
Personally I have more time for Buddhism than for any of the Abrahamic religions. But even fundamentals like the details of the Noble Eightfold Path are still debated and even contested, so nothing about it is as clear and straightforward as it might seem to be.
> But this is how it always goes with religions. There is never a definitive core belief or core morality that everyone agrees with.
The vast majority of Christians would say that belief in the existence of God is a core belief of Christianity. They'd say an atheist is by definition not a believer in Christianity. And, up until the 20th century, there was universal agreement on this. Then, along came some people who claimed they could be "Christian atheists". However, even today, those people are a tiny minority of (self-described) Christians, the vast majority of Christians don't accept that as a valid form of Christianity. In fact, even most non-Christians, even most atheists, don't accept that as a valid form of Christianity. I expect you'll find Christian atheists to be greatly outnumbered by those atheists who consider "Christian atheism" to be a silly oxymoron.
Similarly, in Buddhism, up until the 20th century, pretty much everyone agreed that rebirth was a literal phenomenon – not just some kind of metaphor – and that was seen as a core belief of Buddhism – they would say that a person who does not believe in literal rebirth, by definition does not believe in Buddhism. Nowadays, there are a lot of people – especially in the West – who disagree with that, and think that "there is no afterlife, rebirth is just a metaphor" is a perfectly legitimate variety of Buddhist belief – however, I'd be surprised if people who define "Buddhism" so broadly are any more than a small minority of all Buddhists globally.
> There is never a definitive core belief or core morality that everyone agrees with.
If you mean to use the word “everyone” literally here, then what you are asserting is unfair to human nature (people dissent). If “everyone” is a matter of virtue-based consensus for example, then I beg to differ.
Edit: countries to people