Should Obama be criticised from the left?

There is a controversial idea that Obama paved the way for Trump with his handling of the banking crisis and his unwillingness (rather than just inability) to deliver radical change.

He did some good things and was blocked by Republican Congress on healthcare and other things but he has also had some very un-progressive policies. I'm interested to know what people think of this article:


https://www.theguardian.com/commentisfree/2017/jan/16/how-barack-obama-paved-way-donald-trump-racism