If elon didn't have a private jet and had to travel in a regular passenger plane, it would aboulutely make a difference I'm carbon emissions. Right now, we are seeing emissions from passenger planes AND private jets. Take away private jets and the passenger planes will still create the same emissions regardless. Your argument is that the addition of private jets are a "marginal increase" of emissions.

That makes no sense. Less planes = less emissions. Private jets + planes = more emissions. Just like, if most people took public transportation on the road. Busses + cars = more emissions than if there were no cars and only public transportation left. There would be less emissions if the wealthy traveled in a regular passenger plane like everyone else.

It's easy to go down a rabbit hole with that kind of reasoning.

The point is that one plane can transport a large amount of passengers in one trip, compared to, transporting the same amount of passengers in a private jet would take multiple trips. Transport more people with less fuel use. This is why public transportation is so important. It actually does make a difference. Elon just likes his toys and doesn't give a shit about the effect it has on the environment. That's why he's so focused on Mars.

This planet is doomed because of people like him, and he knows it. Otherwise, he would be investing his money into making the earth a better place instead of investing in trying to leave it.