If we expect cars to share the road with us, we can share the bike lane with a jogger or two. Cars travel 2-4 times faster than a bike normally; bikes travel 2 times faster than a jogger normally.
There are many reasons why a jogger might use the road, but safety and joint health can be primary reasons. As far as I know, it is perfectly legal to jog and/or walk on the side of the road in most areas. How does the "get the f*** on the sidewalk!" comment make you feel as a law abiding cyclist?