I don't hate or even dislike them, Witzend, in fact I was one a few years ago, but I can sympathise with you. Some joggers and runners do tend to be focussed on their run and not on what's going on around them, and yes, I think the huffing and puffing can be a problem. One swerved past me the other day, nearly but not quite maintaining the 2 metre distance, then charged straight through a group of horses and riders coming out across the pavement from a field ahead of us as if she hadn't even noticed them.
There are certainly more runners than ever before round here during the day now, or perhaps it's just that more of them are running during the day instead of before or after work. I think it'd be useful if some of the currently closed off areas - sports fields, etc - could be opened up for them to use away from the pavements and roads.
A bit of de-cluttering. Now and then