@C8RKH We agree it is unfair and unjust for anyone to abuse or exploit any system of rules. The nature of systems and rules is such that bad actors will always seek loopholes and exploits (embezzlement, Ponzi schemes, criminal acquittals based on technicalities of how the case was tried etc etc).
We certainly have different stances on the extent to which bad actors represent a population, or how to treat for such, or the complexities of the issues you described. As I said before, I've no interest in ascribing 'labels' to your view - nor the description of opposing views as "Liberal softies", "Left" etc - as I believe such black/white viewpoints only serve to limit the discourse on the issue ("if you don't agree with me, you must be an xx xx"). Simple policies responding to complex issues will always result in injustice, one way or another.
Since you've put the call out for education / information, you may find these scholarly articles interesting to skim:
https://publications.iom.int/es/system/files/pdf/migration_research_leaders_syndicate.pdf#page=191 (pages 191-195)
https://journals.sagepub.com/doi/full/10.1177/16118944221077412
I'm not suggesting these are offering solutions to all the problems you've noted - as, again, complex issues are not easily resolved. And in case anyone wants to try and put words in my mouth, I am in no way defending the incidents we have noted: illegal immigrants being released, people looking to exploit well-intentioned systems etc. I am simply saying: it's not that easy.