In 1995 we had the second most popular pro winter sport at club level. Today since Union went pro we don't even have the distinction of being the second most supported sport at any time of the year. Union has usurped our spot and we've let them by vacating the space. Some of the reasons for the shift to summer were that we wouldn't have soccer and Union commanding the headlines - so there'd be more room for us - but every summer there's something. This summer there's Ashes cricket and the Lions are touring Oz. Next summer will be the European soccer championships, last summer was the Olympics. Plus soccer has almost become a year round preoccupation with the media anyway. But the fact is that Union has remained a winter sport and at club level has increased its crowds and its media status enormously and we haven't. The increase in media status has IMO been at our expense. Plus of course we've lost the Aussie tour, home and away, we've lost the advantage of our top players being able to guest with Aussie clubs. All round I'd say that summer rugby has been a huge mistake. Whether reverting to winter would be a cure is debateable - the damage has been done. But I reckon the move to summer was a bad one all round.
I'm sorry but this is a terrible case of post hoc reasoning.
Much has changed since 1995 and before, for instance you completely ignore the fact that Union has gone professional. It hasn't vacated our space as it doesn't compete with us geographically almost anywhere, it has grown of its own back. Also off the fact that it already had 80,000 ready made fans going to Twickers for every game and a huge network of amateur players and fans.
We had some pretty serious problems in 1995 that you have just ignored. The reality is that we would have continued to fall behind the Aussies as the Union converts dried up resulting in many of the same problems we have had with the international game. We competed in 1997 with the exact same players that we would have done regardless of the switch to summer and crowds were comfortably down. This would have still happened whilst Union was still massively growing it's international, European and domestic competitions.
Then I could start on the huge growth of the Premier League and Champions League but I think I've made my point.