Was the Great War of 1914-18 the beginning of the end for humanity?

The twentieth century was the century of death:☠

1914-18 WW1 16.5 to 30 million deaths
1918-19 flu epidemic 17 to 30 million deaths
1917-20 Russian civil war 5 to 9 million deaths
1927-49 Chinese civil war 7.5 million deaths
1939-45 WW2 70 to 85 million deaths
1949-75 Vietnam war 1.1 to 4.2 million deaths
1967-70 Nigerian civil war 3 to 4.1 million deaths
1950-53 Korean War 3.5 to 4.5 million deaths
1979-89 Soviet Afghan war 1 to 3 million deaths
1910-20 Mexican civil war 1-2 million deaths
1961-91 Ethiopian civil war 2 million deaths

There were countless insurgencies and civil wars that added up to a million deaths each time to the total!