Earlier quoted context omitted.
You can't paint all lobbying with the same brush. There are beneficial lobbying groups out there helping to bring a voice to issues in an arena where they would otherwise normally be drowned out. We just focus on the bad ones because they tend to have greater influence. Absolutist positions such as this are rarely true and sensible.
If the question was whether or not to ban lobbying, how do the benefits of lobbying stack up against the damage? That whole cost-benefit analysis thing...
So, to ban lobbying outright is to ban input from every citizen to their representative.