They are Slavic countries and Hitler thought Slavs inferior.
No, he didn't hate the region. He disliked Slavic people that lived there. He didn't hate Romania, Bulgaria or Greece, although these countries are in Balkans.
Hitler didn't hate Germans.
The Jews were the target of Hitler's hate campaign.
He didn't kill Romanians, he killed gypsies. It's a huge difference.
No. Hitler did not arbitrarily hate all people with the name "Jesse".However, if this is intended to ask "Did Hitler hate the Jews", please see this Related Question.
No
Yes, their families were getting killed by Hitler's servants. Why wouldn't they hate him? :)
Hitler was evil and hated EVERYONE.
Probably not but in countries such as Germany and Austria you could find yourself arrested and charged with a hate crime.
Yours!
hate and bitterness (and a mustache)
jimmy savil