But protecting local workers from competing with low cost Chinese workers and illegal migrants are very left wing policies, probably the most left wing policies enacted by any president in decades.
I wouldn't call increasing military spending left or right, just about every corner of the political spectrum has done this at some point, most notably the Soviet Union.
Protectionism is not specifically a left or right wing policy. There are right wing and left wing reasons to support protectionism. But the left traditionally has been opposed to protectionism because it was seen as way for farmers and other industries to make workers pay too much for their food and other goods.
As far as restricting all immigration, that's very far right.
I wouldn't call increasing military spending left or right, just about every corner of the political spectrum has done this at some point, most notably the Soviet Union.