You want practical, Huck? How's this:
No federal aid, specifically in this case could have some very undesirable outcomes, and end up costing us (the taxpayer) even more in the long run. Socially, economically, and in terms of public health issues.
Compassion for others. In this case, it's not only the RIGHT THING TO DO to help others, it's also in your best interests as both a taxpayer and a citizen.
Gnaw on that for a bit.
Using that argument to support unconstitutional acts is what conservatives usually call "results based" thinking. Usually conservatives are against that, except when they're for it. In other words, they are no different than Justice Breyer, except that they differ on WHEN and WHY to violate the Constitution.