A legitimate use of Public benefits is someone who temporarily lost their job and is in need of temporary support for a limited set period of time (Welfare benefits are limited to 5 years lifetime). Another legitimate need is someone who cannot work (like incapcited people) or someone who works, but is underpaid and cannot find a job to make ends meet.
It is really a shame her that for many when given the economic argument against Kollel, use the argument “Well others do it, we should too” We are an Am Kodash and Or LaGoyim. An Or Lagoyim should not take government benefits when we can work just because its done in the ‘hood that way