Having been an avid cyclist pretty much my entire life, I can't let this thread pass without commenting. Let me start by saying that some of the following "quotes" are simply paraphrases of what somebody said instead of going through the trouble of copying the exact quote.
"Bicyclists don't belong on the road because they don't pay taxes." First of all, I do pay wheel taxes on the cars that I own. Also, a portion of the roads are paid for out of general taxes, not exclusively from wheel, automobile and fuel taxes, so even if I did not own a car, I would still be paying for the roads. Truck drivers pay a lot more towards the road than cars, does that mean they have more right to use the roads?
How many of you that say bicylces don't belong on the road would think nothing of driving a tractor on the road? "Tractors use the road for necessity." Get a truck and trailer and haul your tractor and quit driving it on the road! Before I ever owned a car, my bicycle was my method of transportation, including riding 20 miles one way to a job. Personally, I considered that a "necessity."
"Cyclist need to obey traffic laws." Absolutely! So do motorists - a red light does not mean "only two or three more cars can go through" - a stop sign does not mean "slow down and if you can make it just drive right on through." Just like motorists, there are cyclists that obey the laws, and cyclists that don't.
"Cyclist like to take up a thrid of the road." And with good reason. If you ride to the far right, you are not as visible to motorists. If you ride to the far right, inevitably some idiot WILL try to squeeze pass you with traffic in the next lane. If you ride to the far right, you have no "wiggle room" to the right when someone does try to pass you to close. When I ride on the road, I always ride in the lane of trafffic unless traffic is heavy AND there is an adequate shoulder to ride on(although the shoulder is not very safe because that is where all the junk that motorists throw out their windows ends up). I try to avoid roads with heavy traffic and no shoulder, but that is not always possible. Case in point, a road near where I live that used to be two lanes each direction with a very wide shoulder has been converted into three lanes each way with no shoulder. When I am riding on the road, anytime traffic backs up behind me(even if just one car) I will pull off and let it by any chance I get. The safest place to ride is about one third to halfway into the lane of traffic, the next safest place is on the shoulder, if it is adequate, and the most dangerous place is to the far right of the lane or on the shoulder if it is not adequate.
"Cyclists should stay on bike trails." I wish we could. There's not enough of them and many of the "multi-use" trails, while fine for recreational riding, are not conducive to being used for training or tranportation. In fact, the Greenway Trail near here used to have a 15 mph speed limit(although it has been dropped) and I have heard of others with a 10 mph speed limit. Even without these speed limits, many of them have places where you can not safely ride faster. Very limiting for people who average 20 mph or more and regularly top 30 on the road.
"Cyclists should have to get a license to ride on the road." Actually, I think this one is a good idea!
I may think of some more, but that's all for now!