Dualistic thinking vs symbiotic thinking

the biggest model of liberal democracy has leaders who dont agree to disagree as they think their model is superior over others.this reduces complex issues to a simplistic relativist world view of good pitched against evil.in practice,there are both strengths and weaknesses in different models of governance depending on the culture,history n social context.in a near homogenous society,the top down governance works when there is trust in authority working for interest of masses and masses faith in getting their fair share of prosperity in life.but it would be hard to work in a diverse,plural society with different sub cultures,values n historical context.thats when representation from multi party system is needed to get diverse views across.so it is not comducive to multilateral cooperation when one nation labels others as rogue nations or leaders of other nations as evil perpetrator with no soul.unless their own nations are perfect models of goodness with no harm n suffering caused to others,who are they to decide who is good or evil? its the saviour syndrome to see the world in dualistic terms of we vs them,the good vs the evil.in reality,good and evil coexist in the same polity and it depends on whether circumstances brings forth the good or evil response.in trying to do"good",one nation can bring harm and suffering to other nations and cause widespread destruction and loss of lives of innocent civilians.so what good will it do?or does the end justify the means.the world view that looks at mutual benefit is far better as its symbiotic.your strenth complements my weakness but together we bring synergy to the relationship as the whole is stronger than the different parts that constitute it.