The founder and director of Faith Matters said communities should make their young people "feel at home", or risk them being radicalised.
Fiyaz Mughal OBE appeared on the Penny Smith breakfast show to discuss the news that former London schoolgirl, Shamima Begum, wanted to return to the UK after leaving the country to join ISIS in 2015.
"For many of these young people it is a sense of identity they're searching for, for others it's a sense of belonging," Mr Mughal said.
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"These are things we all have to take responsibility for, because in the end we have some young people who don't feel attachment to our country, but are also looking for a sense of purpose and identity."
Mr Mughal said he would be happy for Ms Begum to return to the UK, claiming she is young enough to change her views.
"There are opoortuntiies to try to turn her awy from the ideology she has got really ensconced in. I would think she is young enough to adapt over time," he said.
"There are many examples of individuals who have been involved in terrorist plots who have changed."