Want to admit more refugees without endangering social cohesion? Then you should make sure that you're also carefully selecting your economic migrants as best you can. It's not a matter of assigning different human worth to each, but of simultaneously abiding by legal obligations towards actual refugees that are binding for the country, and also trying to do the absolute best you can for the highest amount of people who might be wanting to expatriate to it for different but nonetheless valid reasons - without unduly burdening that country and society in the process.