Impact and wear due to heavy vehicles is DRAMATICALLY caused almost
exclusively by the heavy vehicles. If it was just cars on the road, the
damage to the road due to cars would be miniscule. It all comes from
heavy trucks and busses.

Much the same is true with runways and planes. The heavy planes do most
of the damage and require strong expensive runways. Light GA planes do
not need much in the way of pavement reinforcement.

For that matter most light GA aircraft don't need towers.

Still the guy has a point. The small, strickly GA airports get
subsidized. Having an airport is a point of pride in a community and
there is a safety aspect so far as medical transport goes. But maybe
raising the aviation fuel tax would be appropriate here, trying to get
GA to pay it's way.

There is a LOT of pork in almost all aspects of our economy. It's
downright scary. GA is getting govt subsidy, that is true.