Still syncing desktop and downloads

Dropbox hijacks the computer. the Mac OS is housed in Dropbox and all the key files with it. you can disable backups but, you can't remove the Mac OS from the dropbox folder without losing everything. It's insane. I can't believe you guys don't have a real way to fix this. it happens repeatedly to your customers and it's extremely disconcerting. Because I don't pay for my dropbox account I can't get any real support with this and if try to remove Dropbox from my Mac it takes the OS and key files with it. It's scary and strange and your team should figure out a clean and clear pathway for customers to disentangle dropbox from forced housing the core of the computer and someone somewhere should be figuring out how to prevent it from happening in the first place. It feels very sketchy and like a foreign invader (dropbox in this case) is taking over. No dropbox rep so far has been able to figure out how to safely remove the computer system from dropbox and apple tells me it's a dropbox issue and I need to talk to your company about it. It's incredibly frustrating and completely disconcerting. Please, figure it out and offer a real solution.