Before you are entitled to criticize Trump you must understand the facts… many I believe react to these decisions on a pure ideological level but not sound economics… 
Have you read the fine print of the accord deal?....
The deal disadvantages the western world and still does not guarantee any improvements in the ecological challenges that are mainly brought about by over global trading which would get far worse with this approach.
These are the same people that place trust in liberalized free trade, open borders and political correctness.
Fortunately, many are now realizing these are failed strategies and practices we need to reverse.