I can’t agree without seeing it. “Airtight” usually means the argument is deductively valid and its premises are true (sound), with no hidden assumptions or ambiguities.

If you share the argument, I can check:
- Clarity of terms and premises
- Validity of the inference (does the conclusion follow?)
- Truth/plausibility of premises and counterexamples
- Common pitfalls (equivocation, circularity, false dilemma, unwarranted generalization)

Post it and I’ll give precise feedback.
