Cycling should be encouraged, not only for the environmental aspect, but for the health aspect. We need to ensure that there is also infrastructure and education to help protect cyclists from vehicles.
Cyclists have just as much of a right to the road as any other vehicle, and must also follow the rules of the road just as any other vehicle (certain local laws may differ depending on tollway and if there is a cycling lane or path available).
Most people are uninformed and uneducated about how roads are funded. They are funded from the general tax base and cyclists, especially those that do it for a hobby, tend to pay plenty of taxes. It IS NOT from licensing, car tags or gasoline like many of the comments in this thread.
Many cyclists roll stop signs or red lights because it’s safe or conserves momentum - some local or state laws allow this as well. Riders that take their lane do so to prevent cars from trying to pass them in unsafe conditions (construction, hill, blind corner, etc.). There are cyclists that ride dangerously or unlawfully just like there are drivers that do the same. The main difference is that a cyclist is unlikely to cause harm to a vehicle from a bad decision whereas a vehicle can most definitely cause harm to many things.