The simple answer is to bring them in, house them in nice camps with all the amenities our prisoners get, which is more than the general public

. The money to pay for this should come out of the £12 Billion charity fund that we give to the likes of Pakistan and India, so they can build nukes.

At least we would know the money was being used for humanitarian reasons.
In the mean time, take Assad out. Russia are backing him more and more, and by leaving it, we could end up with another US v Russia proxy war.

A no-fly zone and a shipping blockade would put a stop to that, no need to bomb anyone.