What is with all of the road rage?

I travel all over this great country of ours but drivers today seem to be on a mission that has nothing to do with being safe. Due to the fact I drive a truck I am aware of what is going on inside of that truck that most people who drive cars are not aware of. Truck drivers used to act more professional also. But the road rage bug seems to have bitten our professional drivers just like the other drivers. Some of this I understand. Like the other day in Texas the sign said right lane closed in 5 miles. People were jumping into the left lane to get past one more car before they lost the lane. People were actually pulling out of the correct lane to do this also. Guess what happens when both lanes get to the point where the lanes merge into only one lane. A bottle neck that stops traffic to only moving a few feet as a time. It is one thing to do this when you do not know what lane is blocked. But when the sign tells you and you still jump into the closing lane you are backing up traffic for everybody for no real reason. I have seen states that say merge now before you get to lane closure and post a trooper there to enforce it. Traffic slows only a little instead of everybody coming to a stop. What are your thoughts on road rage and what can you do to help!