Can a company import all their Loom videos to Zoom Clips with the existing folder structures in order to delete their Loom account to transition fully to use Zoom Clips?
I did a brief search on the Internet and didn't find anything that will help you. I seriously doubt either company would author software to do this.
There is an interface to Loom from Zapier, but I haven't yet seen an interface from Zapier to Zoom Clips; plus Clips is not designed to import videos from external sources, but rather to create videos within the user's Zoom desktop app.