Fukuyama argues that history should be viewed as an evolutionary process, and that the end of history, in this sense, means that liberal democracy is the final form of government for all nations. According to Fukuyama, since the French Revolution, liberal democracy has repeatedly proven to be a fundamentally better system (ethically, politically, economically) than any of the alternatives, and so there can be no progression from it to an alternative system. Fukuyama claims not that events will stop occurring in the future, but rather that all that will happen in the future (even if totalitarianism returns) is that democracy will become more and more prevalent in the long term.
On the flip side, he considers the many authoritarian failures.
Supporters of liberal democracy must not give in to a fatalism that tacitly accepts the Russian-Chinese line that such democracies are in inevitable decline. The long-term progress of modern institutions is neither linear nor automatic. Over the years, we have seen huge setbacks to the progress of liberal and democratic institutions, with the rise of fascism and communism in the 1930s, or the military coups and oil crises of the 1960s and ’70s. And yet, liberal democracy has endured and come back repeatedly, because the alternatives are so bad. People across varied cultures do not like living under dictatorship, and they value their individual freedom. No authoritarian government presents a society that is, in the long term, more attractive than liberal democracy, and could therefore be considered the goal or end point of historical progress. The millions of people voting with their feet—leaving poor, corrupt, or violent countries for life not in Russia, China, or Iran but in the liberal, democratic West—amply demonstrate this.
The big question, Fukuyama suggests, with all this is the United States. Although democracy is the end state, it is still something that we must struggle for.