Disingenuous at best. Tax incentives around mortages, charitable contributions, and child health insurance are social signals: legislation saying 'this is what we value as a society, these are the things we want to help you with.' If you disagree with that kind of legislation, argue against it directly. This business about height determining earning potential is utterly irrelevant to your real complaints.

And the math is foolish to begin with: if height determines income level, and you really want to try to equalize for that factor, you should be applying credits/penalties to bring people of different height to the same level -- not taking people who are already at the same level and elevating the short one above the tall one. After all, if they make the same income despite their height difference, it stands to reason that the shorter person is more productive. Applying a credit/penalty when incomes are already equal is the wrong way to argue the (already misguided) point.