Why should someone be allowed to have emissions just because they are flying a plane?
Unlike cars, the lifespan of an airplane is usually measured in decades. Not saying it's impossible, but you can't demand we redesign airplanes overnight to add a bunch of weight and complexity for a fleet that was mostly built in the 1950s-1970s. I would also note, I am a shade tree mechanic and work on a lot of cars, the #1 source of failures in modern cars is almost always complicated emissions control systems, so it's a harder problem than it looks like.
What does removing emissions devices on your personal vehicles have to do with whether or not someone wants to fly? Advocate for better devices and less invasive devices that do not add costs. That's a separate concern and subject from whether or not someone can fly.
All your argument would do is just justify The Next Ban with flimsy justifications.