Do you know what it means? If you're not familiar with the term, search for "ontzuiling" and you'll understand. But if it's just the translation..I don't know if there's a term for it in English.. (I'm Dutch)

This was to be distinguished from political deconfessionalization in that it included matters of personal status and family relations, which, in the view of Muslims must remain governed by religious law.
http://72.14.207.104/search?q=cache:-5GVaExyY_QJ:www.lcps-le...

Netherlandicists refer to 'verzuiling' in English as 'pillarisation'. So the opposite would be 'depillarisation'. I realise that these may be specialist terms that require knowledge of Dutch society and culture, and so may not be appropriate if the text is intended for a more generalist readership. In which case, Kate's answer would be better.

-> "SOCON emerged from the inter-university research program Society and Religion in the Netherlands (Maatschappij en Religie in Nederland: MAREN) of leading sociologists of religion in Holland. It began, in 1979, as a study on secularisation and depillarisation in the Netherlands by a small research group at the University of Nijmegen, with an anticipated lifetime of five years."
http://baserv.uci.kun.nl/~eisinga/soconbroch.pdf

-> "One salient feature of Dutch society is its cultural and organisational segmentation in ideological blocs. Religious blocs in particular have set up a whole array of organisations (political parties, interest organisations, schools, universities, newspapers, health and welfare agencies, broadcasting companies, leisure associations) encompassing practically every sphere of social life. This situation is known as pillarisation (verzuiling). Processes of
depillarisation (ontzuiling) can be observed in changing mass beliefs, collective behaviour and interorganisational relations since the 'sixties. This paper based on longitudinal Dutch survey data examines identification with the pillarised ideologies and questions increasing ideological unsteadiness and intergenerational instability as correlates of the depillarisation trend."
http://www.njss.nl/pdf/abstracts/Volume 26_02_168.pdf

is my spin on this, so that the sentence would start:
Individuaisation means more than just breaking down barriers, it is ...

see refs below:

Exposition Interactive Small Individualization Inquiry Models of teaching ... This approach has been very successful in breaking down barriers between ...
lifelonglearning.cqu.edu.au/2000/papers/moxham.htm

The individualization of the progress, which ARENA announces as a novelty in ... to serve as an example for breaking down barriers which divide the nations. ...
168.243.1.4/publica/proceso/proci832.html

The pressure towards individualization increases. 3. The Beast Kingdom: ...
does any such 'struggle' along these lines of breaking down barriers impeding ...
www.theosociety.org/pasadena/et/et-31.htm

Breaking Down Barriers. (taken from US Department of Labor, Office ... commitment to quality, individualization, and responsiveness. ...
www.advocacycenter.com/bridge june 2003.pdf

Ik denk dat men bedoelt:
vervagen
in betekenis afnemen

Ze zijn er namelijk nog wel, maar ze staan niet meer zo stevig verankerd als in de jaren 50. Ze lopen steeds meer in elkaar over.

"No other country has as great an interest as Belgium in the revival of life in ...or compartmentalization of society into Catholic and Socialist 'pillars'"