It sounds like the video is being widely shared across multiple YouTube channels, which can happen for a few reasons:
Possible Reasons for Wide Sharing
Viral Content: The video might have gone viral due to its content being interesting, shocking, or entertaining.
Educational Value: It could be used as a reference or educational material, prompting multiple channels to share it.
Newsworthy: If it involves something newsworthy or trending, many channels might cover it.
Monetization: Some channels might re-upload popular videos to capitalize on views and ad revenue.
Collaboration: The original creator might have allowed other channels to share the video for greater exposure.
How to Find the Original Source
Search by Title: Use the title or keywords from the video to search for the original upload.
Check Descriptions: Other channels might credit the original source in their video descriptions.
Reverse Video Search: Some websites and tools allow you to perform a reverse search for videos, similar to reverse image searches.
If you’re looking to understand why a specific video is being shared so much, you might need to look into its content and the channels sharing it for further insights.