This is a good overview, though it is balanced in favor of TPP (it basically glosses over Chinese concerns): http://csis.org/files/publication/120620_Freeman_Brief.pdf
As the TPP agenda moves forward, many Chinese scholars have argued that the US’s major intention behind joining the TPP negotiations is not economic but geopolitical – to contain China’s rise in East Asia by reducing the Asian Pacific countries’ economic dependence on China. For instance, Li Xiangyang, Director of the Institute of Asia-Pacific Studies under the Chinese Academy of Social Sciences (CASS), argues that the TPP is an important component of the U.S. strategy of “Returning to Asia” that includes both economic and geopolitical incentives, and one of its major incentives is to contain China’s rise.5 Li also anticipates that once the TPP comes into force, it will seriously undermine the effectiveness of the APEC framework, and China’s being excluded from the TPP will undercut the East Asian regional integration process that China has been propelling for over a decade, posing a great challenge to China’s rise in the future.6 Yang Jiemian, president of the Shanghai Institute of International Studies, suggests that the US “dilutes” and “reduces” (rather than “contains”) China’s influence in the Asia-Pacific region, which could be seen as a “soft confrontation”. 7
It's not about jobs, it's not about economics, it's about maintaining US power in that region of the world through economic subterfuge.
Jane Kelsey is at the forefront of this aspect of TPPA:
http://www.twnside.org.sg/title2/resurgence/2013/275/cover02.htm
http://www.itsourfuture.org.nz/tag/professor-jane-kelsey/
http://thedailyblog.co.nz/category/bloggers/professor-jane-kelsey/
She also did a good talk on it here:
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