No Religion = Peace begs the question what's makes religions un-peaceful?
I agree that when people are judgmental, hypocritical, selfish, abusive, intolerant, murderous in the name of religion the word would be much more peaceful. The irony is that no one spoke out against religiousness more than Jesus. "Come to me all you who are heavy laden.." refers to the heavy burdens the religious leaders were putting on the people...'and I will give you rest for your souls."
Imagine you are in church and someone stands up and exhorts the crowd with these words from Amos...
Alas, you who are longing for the day of the Lord,
For what purpose will the day of the Lord be to you?
It will be darkness and not light;
19 As when a man flees from a lion
And a bear meets him,
Or goes home, leans his hand against the wall
And a snake bites him.
20 Will not the day of the Lord be darkness instead of light,
Even gloom with no brightness in it?
21 "I hate, I reject your festivals,
Nor do I delight in your solemn assemblies.
22 "Even though you offer up to Me burnt offerings and your grain offerings,
I will not accept them;
And I will not even look at the peace offerings of your fatlings.
23 "Take away from Me the noise of your songs;
I will not even listen to the sound of your harps.
24 "But let justice roll down like waters
And righteousness like an ever-flowing stream.
If you read the book the people were 'being religious' while exploiting the poor and accepting bribes in court, etc. God cares more about loving him and loving others than religiousness.