Why do today's Christians never express any kind of criticism against other religions? I've been listening to local and far-away Christian radio stations for a long time.
What strikes me is that, not even once, have I heard them (any of them) say a single word that could in any way be interpreted as criticism in any manner against Jews, Muslims, etc.
If anything, they are very eager to speak about the &quot;people of Israel&quot;, etc., in very positive wording, almost as if they were speaking about themselves. There seems to be no question to them whatsoever about the question whether Jesus was a Jew or not; as far as they are concerned, this is 100% established, and not a contradiction in any way.
Maybe there is some kind of Christian branch which does have such criticism, but if they exist, I have certainly never been able to find them. And I suspect that they must have a very small following/reach if such is the case.
But how can this be? One would assume that they would be talking about how the other religions are wrong and theirs is right, but... nope. I almost get the feeling that they actually consider themselves to be Jews, only with a slightly different view on some things.
Even just the fact that the Old Testament is the basis of Christianity (expanded with the New Testament) is very strange to me since it only talks about Jews and not Christians.
&quot;Back in the day&quot;, I get the feeling that they had a quite different perspective. What has happened in recent decades?
My experience has not been similar to yours, in that I do hear church leaders criticise other religions. In addition, as a young man I don't know what things were like a few decades ago to compare it too. Nevertheless, I want to attempt to answer the question.
This article, from a prominent Evangelical source, discusses the way in which the author suggests Christians interact with other religions. While we could debate whether the author is correct, I would say this is a common view. The author generally tries to hold together two opposing views: a) belief in Jesus is the only way to salvation, and therefore we must criticise other religions, b) we must do so in a way that helps our cause, rather than hinders it.
The Apostle Paul says a similar thing in Collosians:

Be wise in the way you act toward outsiders; make the most of every opportunity. Let your conversation be always full of grace, seasoned with salt, so that you may know how to answer everyone. Collosians 4:5-6 (NIV)

Exactly what being wise and gracious means will depend on the circumstance, the people involved, and the nature of the society we live in. I suspect every Christian will have a different idea were that line is, and I've heard many say our modern (in particular, Western) Christianity are a bit too generous with this line.
However, I understand why a Christian radio station in particular would choose to avoid criticism of other religions. They have chosen to perform a particular role, and leave other functions up to the church. For comparison, consider the way this Stack Exchange runs. Two thoughts that immediately jump to mind:
Firstly, a public radio station needs to cater to a wide range of Christians. There are denomination here on Christianity.SE that I strongly disagree with, and feel ought to have their beliefs criticised - but I recognise this isn't the platform for doing so.
Secondly, a pubic radio station has no ability for personal discourse. If I disagree with the pastor of my church, I can go talk to him after the service (and on occasion have done!), and he can get to know my particular objection and life situation. A radio broadcast doesn't allow for this. Again, this SE has made similar decisions, albeit about a slightly different topic.
In conclusion, I would say that the reason some Christians publications choose not to openly criticise because:

They believe there is biblical precedent for being wise towards other religions
They believe in our current climate, &quot;wise&quot; means avoiding public, impersonal criticism
They have chosen to perform one specific function, and leave the rest of the church's responsibility to the church.

Whether one agrees with this logic, I would say that is the decision being made. I would hope that an individual church would recognise the need to expose the un-truths in other religions, and would seek to do so in a clear but wise manner.