How is Obamacare a pejorative? Obama thinks that it's a BFD (to quote Biden), one that he worked very hard to achieve. He's said that he sees it as a significa

How is Obamacare a pejorative? Obama thinks that it's a BFD (to quote Biden), one that he worked very hard to achieve. He's said that he sees it as a significant legacy of his administration. Why shouldn't he get the credit?