Let us take as granted it that "the number of violent conflicts is the highest since World War Two". Let us assume that this is accurate.
Nevertheless, these statistics are globally better than any previous century: rate of people dying in war, poverty, child mortality, child education, female education, access to clean water, access to food, access to medical care, economy, life expectancy, crime rate, number living under democracy.
It will always be possible to point at one or another thing and truthfully say that thing is worse than it has been for a long time.
However, as bad as things are, as truly grim and miserable and precarious the lives of some people, we do indeed live in times of unprecedented peace and prosperity.