The videos are not stored on your storage, I think they’re stored on Aliexpress CDN and Vimeos.
I can think of only 1 way (I haven’t tried yet but you can).
1. Backup everything incase things go wrong
2. Download “Asset Cleanup” plugin
3. Go to 1 of your products and find the “vimeo” files, “unload” them on all places. I think this will not load or show the videos
Again, I haven’t tried it but it’s the only way I can think of