Is there any evidence of this? To me it seems like humanities makes people have less empathy, since instead of feeling other people they analyze them.

For example, to me it seems like American politicians have way less empathy than European politicians even though European politicians have studied way less humanities than American ones. So my belief that studying humanities helps you deconstruct the human experience and see us as robots, hurting your empathy.

I do however believe that studying humanities makes it easier to answer what the tester wants you to answer on empathy tests, since you now understand those tests better.

I don't have scientific evidence. But my wife is a historian and the process of doing history is fundamentally the process of erasing your own context and placing yourself fulling in somebody else's context. That's fundamentally the practice of empathy.