The quality of the leader of a country should have some basic qualifications, good character, temperament, rationality, consideration for others and must be a believer in decency. Lack of any of these qualities must be taken into consideration before allowing or proposing some to be a Leader.
Unfortunately, lack of such qualities seems to be the necessary qualifications to be a modern day President or the Prime Minister.
In present day I see Leaders like Donald Trump, Boris Johnson, Vladimir Putin, Rodrigo Duterte, Benjamin Netanyahu, Recep Tayyip Erdoğan, Jair Bolsonaro and Viktor Orbán are examples of those leaders lack the basic qualities while the other category contains leaders like Emmanuel Macron, Justin Trudeau, Imran Khan, Stefan Löfvenm, Xi Jinping, Ulrich “Ueli” Maurer, Angela Merkel, Jacinda Ardern, Lars Løkke Rasmussen and several more.
It is easier to illustrate the two categories as Right Wing and Left Wing. I have the ideal words for both. The first is the barbaric Leaders and the second category as the Civilised Leaders.
Some of the worst past barbaric leaders and dictators include Pol Pot, Papa Doc Duvalier, Mahinda Rajapakse, Juvénal Habyarimana, Margaret Thatcher and Idi Amin have created irreparable damage to their respective countries under their reign of terror.
If the so called United Nation is to be treated as a World Authority its first priority should be to take charge of presidential elections anywhere. It should make sure that local political parties should be kept well away from any election related administration.
The United Nations should try to discourage all countries from making and selling arms. The UN should concentrate in promote education, health, judiciary and general welfare of all citizens. It must seriously look at the constitutions of all the countries with a view to remove all discriminatory clauses in it. It must have a Supreme Court to conduct hearings from countries with political problems. Ideally, the UN should take action to ban businesses engaged in gambling, selling alcohol or drugs, Sex Trade, Unlicensed money lending etc..
Countries like Israel and Srilanka should be forced to withdraw their militaries from all illegally occupied territories. Palestine and Eelam were countries that existed before the Colonialist Britain that invaded them. Their original sovereignties should be restored without further delay.