Buskis
No heat intened to you
But with my tongue in cheek, I suggested that the aircraft related
causes were measurable and therfore taxable, but I doubt that much expertise exists to exactly quantify relative damage beween these causes and all the others, like autos, wars. burning forests etc.
It's easy to go for a small sector that already has a formal tax structure and just demand more. It would be nearly impossible to go after the others, since there is little commonality in their taxable structure.