I asked because some folks use Finder to delete backups from their Time Machine drive. This is a very, very bad idea & often causes problems with the computer.
In your case, I think you just have a LOT of big files, and it will take a while to remove them all. If I find I need to remove a lot of large files, I first move them to a folder called "Trash" which is on my desktop. Once I have all the files together, I move some of them to the actual trash bin. This way, if emptying the trash gets stuck along the way, it's not so hard to figure out which file caused the jam. The system may think a file is in use or locked and that will bring the trash emptying process to a complete halt.
If you want to stop the trash emptying process, at least for now, you can relaunch the Finder by clicking the Apple icon in the upper left corner, clicking "Force Quit," then highlighting Finder & hitting the
enter key or clicking "Relaunch."
I do agree that you need to get this stuff removed, but perhaps doing it in smaller chunks will help.
~Lyssa