1. The air and ground of Lakewood are tamei (Rambam Hilchot Tumat Met 11:1). I will go even further than Tak. The house of the worst anti-religious politician in Israel has more kedusha than all of Lakewood.
2. By living off welfare they are doing a tremendous chillul Hashem besides the problematic nature of accepting tzedaka from gentiles (see SA YD 354:1).