[XYZ]

Re: chamber pots:

Sure, that was just a nice graphic example that everyone should be able to understand. The same mental attitudes lead large numbers of people to, just for instance, insist on getting their electricity from fossil fuels, because the adverse consequences don't show up right then and there, and affect them directly.

Why should you care about what affects them directly? What makes you concerned with the "mental attitudes (of) large numbers of people"?

Would you be opposed to their getting their energy from nuclear energy or a clean version of coal generated power plants?

Of course there is, but my point is that the effects on me are the same, regardless of which of the three motivated the action. As for instance, my dickhead neighbor who, every day at the crack of dawn, idles his oversized diesel truck for 15 minutes or so. Do I (and the rest of the neighbors) care whether he does this out of stupidity, ignorance, or willful disregard for his neighbors? We still have to listen to and smell the thing.

So he engages in behaviour that you find offensive. Apparently there is no law against it. Would you like to make a law against it?

Have you considered speaking to him about it? Have you considered closing your windows?

So you care about what affects others, and you readily call them "dickheads". And you also say you care about what affects you "directly".

I have a neighbor who may be similarly ignorant or wasteful. His vehicle is a Honda that he will run at idle in his driveway for at least 15 minutes before driving it at all. It's a waste of fuel. Does it annoy me? No, it doesn't.

The ones I'm thinking of as ignoring the "let live" are the self-proclaimed *libertarian"* types who, for example, think everyone else should be happy to breathe their second-hand tobacco smoke. They're happy to 'live', but come up way short in the 'let live' department.

Are you in their homes? Where does this offensive behaviour occur? I don't know of any actual Libertarians who smoke tobacco, unless they are smoking pot. Unless they are in Colorado, that's usually not done in a public space.

In quotes because I don't think they have the slightest understanding of what libertarianism is, other than an excuse for doing whatever they please, regardless of how it affects others.

There is a difference between being a Libertarian and being a libertine. I suspect that you already knew that, even if you didn't qualify it. But I also wonder whether you are a Libertarian or not. Your examples and arguments suggest that you are not.