If your grasp of both nutrition and food safety regulation is so lacking that you can't see the difference between eating at a fast food place and eating from a dumpster, you're not really in a place to offer criticism- or you've never had to eat from a dumpster, and are simply uninformed (for the record, you do much better with trash cans, since it's less rotted).
That said, diabetes is far more common than Celiac, and plenty of places have options for THOSE folks; seems to me you've found a possible niche market. If you're not in position to exploit it directly (i.e., by opening such a restaurant yourself), you could suggest it to others who are.