How to: transfer existing videos from YouTube to Rumble?

Ways to add your YouTube videos to Rumble:

1) Upload the file directly to Rumble:

You can upload content to Rumble if you have the original video file through the upload page.

2) Previously you could also bring your content automatically from YouTube to Rumble by using the sync feature on the Rumble website. This feature is no longer available since it has been blocked by YouTube.

https://corp.rumble.com/blog/update-on-automated-channel-syncs-from-youtube/