Head of states should receive diplomatic privileges not enjoyed by private citizens because they are a symbol of National Unity. When a head of state is insulted or disrespected, is is the office that is disrespected. Germany should consider it's decision to abolish that law that protects foreign head of states.
Diplomatic immunity is an opportunity outdated practice that comes from the time when moat counties were ruled by kings and queens. This is no longer the case and most heads of state are elected officials that represent the public. Dimplomatic immunity has been abused and the practice needs some major reforms.
Heads of state should not receive diplomatic privileges not enjoyed by private citizens. In an instance such as insulting them, those speaking freely about these diplomats should be allowed to exercise free speech. This critical speech may benefit citizens of the country, as it informs them of a current topic or issue.
Foreign heads of state should not receive diplomatic privileges not enjoyed by private citizens. If a private citizen can be insulted by another person, then a foreign leader can appreciate the same treatment. No one should be above the law--better than the average citizen. Everyone should be treated equally under the law.