The same "Blow out" option where you can remove an item from a bar by dragging it out of it also exists when we Customize Toolbar. To enable it though, you have to right click and enter the Customize Toolbar section. It is not possible to just drag extensions like that and remove them with regular use of the browser.
Another possibility is to add an edit option for the Bookmarks Bar. Although I believe the easiest and most practical solution to this problem is to just disable this function if possible.
If you have more questions, shoot away. Forgive me, but I'm not making a video for this. Thank you for understanding.