That's not actually a Christian view he is portraying, the end times are on the way, and with them a lot of pain not peace, if it happens in our time, the peace will come later and we won't be alive to see it.
On the other hand, if you are not a Christian, maybe hearing his words and
digging to make sense of them makes his speaking them is exactly what you need
to kick start you on a different path, in any event he is a Christian, and sharing the
word of Christ is what we are told to do.
However or whenever world peace comes, there is no harm in living and encouraging each other
to live in peace.