Where on earth did you get your polling data?
Before you quote polls, you might want to research them to see what questions were asked. Your 59% number, for example, probably came from a poll asking approval concerning government shutdown as a result of defunding.
Pew/USA Today, Sept 16
Do you approve, strongly approve, disapprove or strongly disapprove of the ACA
53% disapprove (41% strongly disapprove)
42% approve (26% strongly approve)
(19% of the under 26 yrs polled didn't know that they would be forced to carry insurance (mandate)
CNN Sept 2013
39% support, down from June
The ACA has never had majority approval with the public.
The public is still confused about exactly what Obamacare is going to mean for them, and still divided in their opinion about it, but there's only one bloc of the public that thinks Republican sabotage of it is a good thing: a small minority of Republicans who self-identify as tea party. That's according to the latest polling from the Pew Research Center and USA TODAY.
Fifty-three percent of respondents disapprove of the law, while 42 percent approve, and uninsured voters are almost evenly divided, 49 percent approve, 46 percent disapprove. But only 23 percent of voters think Republicans should do what they can to make the law fail.
The House GOP de-funding approach is only embraced 23%
In poll after poll about 1\3 of the people who disapprove of ACA say "It Doesn't Go Far Enough"