Well, you make a fair point that miners are ultimately interested in mining on the fork with the largest economic activity. But just as with Bitcoin (where exch

Well, you make a fair point that miners are ultimately interested in mining on the fork with the largest economic activity. But just as with Bitcoin (where exchanges have lobbied for a blocksize increase for a long time already with zero success) I would argue the number of parties that affect overall economic activity is hard to pin down and includes a larger segment of the community than you suggest.