Regardless of the intentions, the No Sunday Hunting was based on a Christian belief that Sunday was the holy day. These same laws were written by Christians at a time when that religion was about all there was. Like so many archaic hunting regs written before most of us were born, there is no longer a foundation or real purpose to them. Problem I see with many of them is tradition. Wisconsin has been trying to establish a more liberal gun hunting season with opening dates no longer established by the celebration of Thanksgiving. The biggest opponents are long time deer hunters.
A problem I see with no hunting on Sundays is that folks have recreational time available to them on Sunday. Those same folks find something other to do than hunt on those days off. As with most hobbies, folks have so much time and so much expendable income. Soon they spend all weekend doing a hobby because they can.....and hunting suffers along with the recruitment of new hunters.