Martin Luther King had a dream. That dream marched hundreds of thousands of people all over the USA and inspired others around the globe.
The strength of King didn't lay merely on is personality and his ideas.
It laid, first and foremost, on the fact that he had an idea. He combined the existing wishes and passions of people in the USA, centuries of belief in human equality and human rights into a clear an articulated utopia - an achievable new world which managed to wash away cynicism and mobilize masses.
The existence of a clear alternative world is a strong force - the one which explains the force of religions over people. The one which explains why Marxism had the same force over people.
This explains also the amazing strength of the capitalist idea - which is a clear but also one of the simplest of all utopias. Let the market play, don't intervene and the world will be paradise.
There is no leftist utopia nowadays. There is no liberal utopia. Liberalism has succumbed to a pile of post modernist bullshit. It retreated in the face of a mass of relativist ideas which justify why all the ideas of humanism and liberalism should be sacrificed to appease religious, extremist ideologies and oppressing regimes.
Enlightenment as moved aside and in the name of liberalism cleared the way to anti liberal ideas.
The west's liberalism submerged itself in a bath of guilt over the calamities that Europe has brought on the world over the 20th century has disappeared.
Instead of reformulating its aspirations into a new sociopolitical movement is was washed away by relativism, effectively accepting non-liberal ideas as acceptable just in order not to impose "European" ideas and castigating those who still believe in it as "imperialists", i.e. the USA.
For the sake of humanity and the world, the western liberalism has the same right to exist and profess its convictions like any other ideology. Regretting for western deeds should learn to a revision of ideas, improvement of liberalism and cleanup of racist ideas, but not to a full retreat.