If you have only been hearing about the problems with the website, read this article about people who have already been helped by the ACA. Why would anyone want to go back to what we had before?
If there are problems with the site, fix them. If people are being cancelled by their insurance company when they want to keep their old plans (even if those plans don’t meet the requirements of the new law) we can fix that too. Fix what’s wrong, change it for the better. But never go backwards.