IMO, there ain't one reason for it. But all religions (or their enlightened leaders) were equally great. Everyone existed in different society with different challenges. So their messages might seem different but ultimately will lead people (or true followers) to same state as theirs.
Last month, I visited several places related to Buddha's life including birth, remains of his father's kingdom, cave where he spent 6 years meditating before enlightenment, bodhi tree under which he got enlightened, place where he spoke his last words, nirvana etc. places and stupas.
It seems Buddhism was the dominant religion of that times. But it probably changed after the arson in the Nalanda University - the largest university & library of that era. Most of the original Buddhist manuscripts were burnt to ashes with that. I visited the remains of this university too. It was huge. It's said that the fire kept burning it for 6 months. I also saw some of the burnt rice grains in its museum. It was all overwhelming. I had a feeling that Nalanda had all the resources that kept the light of Buddha alive for centuries. But after this university was destructed, the message of Buddha got almost lost.
I've heard that Jesus had also received his spiritual knowledge in India in his youth or early years; and later went to spread it to the West. According to one story, he returned to India after his said "crucification" in the final years of his life. I want to visit that place as well but heard that for some years now, it is no more accessible to general public. But I'd like to go there some day to feel the vibes of that place.
I don't think that Christ taught materialism or encouraged ego or competition among people. It all boils down to how his life & messages are interpreted by his followers and what kinds of rituals are enacted by the society in the years that followed. IMHO, there is always a better way to interpret a message.
Excellent to learn of your personal journey to visit so many of these special places, relevant to the life of Buddha. "Feel the vibes" is right! Must have been buzzing.
The bible mentions nothing of Jesus's time in India and a quick internet search tell me this: "No historian takes seriously the claim that Jesus was in India, either in his teens or post-resurrection. There's zero evidence to support this hypothesis." But that's not to say it isn't true! The bible has had many re-writes over the years and perhaps these parts of his life simply didn't fit the desired story. I can see how the teachings of Jesus & Buddha are not all that different at their core. It's just time that can be cruel to our great spiritual leaders it seems!
Sorry to hear so many of Buddha's teachings were lost with the arson of the Nalanda University. Was not aware of this event till now. But it makes sense of course. Religions like this are basically dangerous to the modern establishment.
Like you I don't think "Christ taught materialism or encouraged ego or competition among people" but if we are following closely the teachings of Buddha there is no way a person can end up trapped by such matters. While a Christian has no obligation to relinquish his possessions or emotional connections. And like I mentioned there are plenty of examples of materialistic ego-based Christians. So it was more just an observation that Buddhism (in its purest form) doesn't seem to fit with the goal of the Great Reset in the same way Christianity does.
Thank you for your observations my friend. I wish you all the best on your great journey!