Sorry for being late to the party and I like much of what TruthBearer said and disagree with others. Let me focus on this one point, hopefully without doing damage to the larger debate.
The problem is the basis of ‘threatened’. In my country, taqiyya seems to be acceptable in dakwah activities. Many of the nationalists Malay (50% of the population who controls the political power, and are by definition Muslims) deems that Islam (and hence Malayness) is under threat from Christians (10% of the population and not in control of political power). They then respond to these threats by converting many of our children and taqiyya seems to be accepted tool as their religion is perceived to be under threat.
Of course, in Malaysia we have inter-ethnic political problems that is peculiar to us and this is not necessarily Islam. Most Malaysians (including Muslims) are discerning enough to know that the root is not religious in nature but politics using religion to retain political power. Just as I would see ISIS as a socio-political problem based differently in various countries but using religion as the justification for their views.
As with many of us working on apologetics in Malaysia to explain our faith & differences with Islam to our youths, I am fast coming to a realisation that it is not just differences between Islam & Christianity we need to explain but (very controversially) differences between Islamic teachings and practices of Muslims we need to explain. Here, I am not just talking about the very obvious divergence in ISIS but also in the minds of many ordinary and sincere Muslims.
These could be scriptural (many Muslims think that Abraham sacrificed Ismail but the name of the son was never mentioned in the Quran), doctrinal (many Muslims think they can’t touch pork/pictures of pigs/smell pork dishes/say the word pig when the prohibition is only against eating pork), historical (many Sunni Muslims are unaware that Islam is very varied throughout the world and not monolithic as they would encounter in their local community).
Part of the problem (other than the political issue and also the desire of some cleric seeking to retain power over their congregations) is the religious education where the focus is on recitation of the Quran and limiting the scriptural studies to only understanding of classical Arabic instead of the context etc like we do. I understand that this is due to the literalist view of the scriptures that is fundamental to Islam (Quran was written by the hand of God who is omnipotent and Mohammad was an illiterate, etc etc) but this is something that hopefully exposure to education will lead informed Muslims to question the fundamentals of their faith very much like Christians have done in the Enlightenment (and in my opinion, being all the better for it).
So, I would see the inter-religious dialogue, while always desirable, works best only if
- nationalistic politics is kept out of it
- dialogue starts with a pluralistic point of view (many Muslim clerics start with the point that whatever stated in the Quran is literalistically correct - or at least certain preferred passages are while those not preferred are ignored). If they don’t, then that should be where the dialogue needs to deal with before moving on
- it recognises that there are often fundamental differences between Islamic teaching and practices and how the we can help Islam bridge that gap
- it helps Muslims move away from a tribalistic view of the umat (rallying to the defense of any Muslims victimised world-wide but not to non-Muslims similarly aggrieved)
- the Church refrains from triumphalism and acknowledges that there has been hurt caused by Catholics in the past, eg Crusades, Israel (whether we agree that the perceived hurt is justified or not).
At the risk of viewing all Muslims in the same way, I note that inter-religious dialogue with Muslims seem to be on firmer ground in US than most other countries because (1) secularism distances politics from the religious sphere; (2) education has helped Muslims view their religion more in a rational than a literalist manner and (3) diversity has helped opened up the mind of Muslims and recognising their place in the universality of the human race.