Fishing for salmon with a fly is quite an active pastime as opposed to course fishing that involves staring at a float for hours on end and certainly makes watching paint dry seem like an exciting alternative.
I used to participate in fly fishing for trout, and ate what I caught. I don't have any problem with blood sports that involve cleaning and eating what you've killed, and killing sufficient for ones immediate needs. But in my case, I would have starved to death before I caught sufficient food for my own needs.
Anyone that lives in or near to the countryside will be well aware that there are plenty of cruel blood sports actively being pursued just for fun. In my area, the old relandscaped pit tips are active at night with doggers (in the original meaning) working lurchers on hares, rabbits or anything that moves, to feed their ferrets to catch more rabbits for just for the fun of it.
Cruel countryside pastimes are still just as much alive and well in the 21st century, as they were in the 18th century.