Regardless of migration status: some people are productive members of society, and others mooch of the welfare state. Even if migrants have a higher ratio of moochers: The Caplan solution which I'm quite sympathetic to is reform the welfare state so people have less opportunity to exploit it and mooch off of others. Native born moochers also shouldn't have the right to mooch either. And many potentially productive foreigners shouldn't have their rights to migrate and be productive abridged by the mooching tendencies of others.
Regardless of migration status: some people are productive members of society, and others mooch of the welfare state. Even if migrants have a higher ratio of moochers: The Caplan solution which I'm quite sympathetic to is reform the welfare state so people have less opportunity to exploit it and mooch off of others. Native born moochers also shouldn't have the right to mooch either. And many potentially productive foreigners shouldn't have their rights to migrate and be productive abridged by the mooching tendencies of others.