Alright, let's talk about Bismarck.

He was not a German patriot, but a supporter of the Prussian monarch. He did not care a thing about Germany, he wanted to increase the power of the absolte Prussian sovereign.

He was more than willing to opress the rights of the individuals (religious rights, political rights, social rights, ethnic rights). He was more than willing to spoil blood. He could have achieved a German nation without spilling blood. He did it,because his goal was absolute power for the Prussian Kaiser.

He created German militarism as an idol for whole Germany. He mixed the ideals of nationalism and imperialism. He requested the unity and independency of all Germans (excepts those from Austria!) but he denied the rights of Danisgh, Polish or French, which lived in the countries he could get.

He established hostile relationship with France and England.

Summary: He prepared the road to WW1.