One thing EVERYONE needs to remember..........The person in the lane YOU are trying to move into does not have a legal obligation to let you in. It is THEIR lane that YOU are pushing into.
YOU are driving a Monster size vehicle. That doesn't give anyone the right to think they can push other people off the highway or force them to let you merge in. Your vehicle is BIGGER and in most cases SLOWER.
When you allow your EGO to get involved and think you own the highway then it's time to hang up your keys.
The next time you want to push into another lane because YOU want to look VERY CLOSE in that mirror pointing along the side of your massive coach. Look for SMALL CHILDREN. They aren't driving that vehicle that won't let you in.
One last point......ANY CRASH that involves a vehicle mering into anothe lane is THE FAULT of the driver doing the merging.