naomi - // However, since Christianity is the biggest religion on the planet, employing his logic, Christians should be the foremost culprits but they’re not because unlike Islamists they do not have a distinct objective. //
Statistically, I would agree with you.
But in real terms, I doubt Christianity is the largest religion in terms of day-to-day adherence, and therefore a proportionately larger willingness to resort to practical action to enforce beliefs.
On a tick-box exercise, Christianity is the largest religion, but how many of those counted actually practise their faith daily? A small proportion I would suggest.
I am a baptised Christian, and on any form I have completed in the last forty years that asked for 'Religion' I would have ticked 'C of E', and been counted in the stats.
Of course, I am not a Christian, and in terms of meaningful belief, I would suggest that a good eighty per-cent of 'Christians' are not so in any way that actually makes a difference.
Contrast that with the number of Muslims who do practise their faith daily, and the stats look a little different.