I think an aggravating factor that IG alluded to is the death of pluralism.
Used to be that we understood folks had a right to think different than us about God, we could respect that, maybe have a friendly argument about it at the academic level or at a social function, maybe tell a joke now and again. Sure, within the confines of your church/temple/what have you, you might hear someone speak of the evils of other religions. But by and large, as long as we all met up and agreed on common community moral standards, we left each other alone. Recent studies indicate that during that time, religious literacy was light years ahead of what it is now - we knew more about what other people thought, than kids do today. It was discussed in schools, and like IG said, kids would go off to their religious education, respective to whatever their family believed.
Progressives hate pluralism, they want conformity, by regulation and violence if necessary. Its not enough to disagree with them; they take it personal. Those who disagree are of a subset of humanity, intrinsically less educated, less intelligent, probably of questionable genetic heritage, or possibly just evil. Progressive don't want you to be merely silent - they want you to embrace their view, clapping, smiling. Reminds me of 1984. Pluralism is no longer tolerated in government, schools, politics, media, culture, etc. The acceptable intolerance is of those you feel are intolerant ... which is hilarious given that literacy is so low. How would they know how tolerant someone else is when they have no clue what they believe? Its all stereotyping ... dare I say: profiling. Progressives love to profile those with whom they disagree, but will adamantly argue that profiling is wrong. They love to persecute those with whom they disagree, but will adamantly argue that they deserve it because they hold ideas that might lead them to persecute someone else. They want free will, as long as you choose their way. They want liberty for all ... who behave as they think is appropriate. Our nation fought against that on foreign soils, while we trusted schools and churches to keep us safe at home.