Well, I guess I didn't make myself clear.
I meant that the drivers on the on-ramp should not expexct or demand that the drivers on the freeway move over or change speed to allow the on-ramp to merge. The vehicles on the freeway have the right of way, that's why those yield signs, and the occassional stop sign, are directed towards the on-ramp. The on-ramp drivers are expected and required to merge their car into the flow of traffic that is already on the freeway.
Yes, when traffic conditions allow, I will move over to allow others to merge easily and allow me to maintain my speed. Yes, that is the polite thing to do and it certainly follows my personal driving philosophy of "don't interfere with other's progress/course of action." The fact remains, however, that I am not required to change my course to allow others to merge. The problem is with those drivers who think that "everyone else is in my way and must immediatly move out of the way because I am: going faster, or changing lanes, or turning, or merging, or exiting."
The merging driver needs to plan ahead. He needs to assess the flow of traffic to determine the best way to merge safely. Sometimes the driver will need to put the pedal-to-the-metal to match speeds and find a hole in the traffic. Other times, such as during heavy traffic, the driver will need to slow to a crawl to complete a safe merge. And sometimes the only course of action is to charge right in and hope the other drivers are paying attention.
Predictability equals safety. If you know (have a reasonable belief) that the other drivers are going to act in a manner that you can predict, i.e. follow the traffic laws, then you can reasonably expect not to be crashed into. Or would you rather drive like those countries that traffic suggestions?