Well, everybody has their own reasons for literally everything. It all depends on what's happened in the person's life. If someone loses someone, or get's hurt, or something they take out their pain on other people, leading them to kill people.
All of this goes under sociology, behavioral science, criminology, victimology, and psychology.
As for hatred, I don't know that people "love" it. People just have a need to be defiant and rebellious.
As for power, people are sometimes control freaks. They need to be in control of all situations. This has to do with how they were treated as a child. If they were beaten, or bullied, they'd like to rise up and become the beater or the bully.
The answer is Germany. Starting in the late 19th century forwards
Britain had a relative economic decline as other states such
as the United States and Germany held up. In 1870, Britain's output per head
was the second highest in the world after Australia. By 1914, it was fourth in
the ranking. This was before the World War 1.
Describe the economic hardships that Germany suffered in the time period after World War I. What was the political effect of these problems? The Treaty of Versailles imposed heavy reparations on Germany. In 1923, when Germany fell behind in reparations payments, France occupied the Ruhr Valley.
