You shouldn’t paint with such a broad brush. There are plenty of considerate smokers who try not to smoke around others and never litter our butts. Just like with so many other things, the people who are highly visible assholes give others a bad name.

I agree it’s disrespectful. I have often picked butts up and handed them back.

For people in motor vehicles, I tend to pick them up and tuck the butt under their windshield wiper. This is relatively easy if I’m on my motorcycle stopped at a traffic light.