It isn't fair to say that Jonny Wilkinson is the biggest problem with the sport today. His dominance is just a consequence of what makes modern rugby union such a lame sport. The problem is two-fold...
Firstly, there are far too many stupid, pointless stoppages for minor infringements in and around the scrum and rucks/malls. This is largely down to the fact that forwards these days are so ridiculously big and strong that 90% of scrums end up collapsing, resulting in penalties. Also the number of times the referees give penalties for baffling, almost imperceptible fouls in rucks and malls is just so frustrating. There is no flow to the game, the ball hardly ever gets out to the backs where it should be. The amount of time spent stopping and starting makes the sport almost as ludicrous as NFL.
The second issue is that as a result of all the stops and starts, and crazy penalties the game becomes far too heavily based on kicking. This is compounded by the fact that there are far too many points on offer for kicking goals. You get 5 points for scoring a try, but THREE for just hoofing it between the posts. If you get a penalty anywhere in the opposition's half and you have a decent kicker in your team there is virtually no incentive to try to pass the ball and go for the big points, it makes far more sense just to hoof. It just so happens that in Jonny Wilkinson England have found someone ridiculously good at hoofing. You can't blame us for that. I guarantee any other rugby playing nation would kill for a player like Jonny in their team and would use him in exactly the same way.
To improve the sport the bottom line is they need to get rid of all the time wasted in scrums and rucks etc, and they need to cut the number of points on offer for penalties and drop goals. In short, they should all just play Rugby League! It's just a better, faster, more entertaining sport in every way!
Having said all that, I'll still be in the pub tonight hoping we batter the Seth Effricans!