No, I mean that community building efforts should concentrate on a few groups that already show much potential rather than try to "save" all nominal muslims. The higher TFR in these groups is already a given because they are more religiously conservative.

So, when trying to "islamize" a culture or create a new one, efforts should be directed towards these groups because the others will either be a drag or because their cultural footprint will be so small, that they are not too strong a competing force.