What is wrong with people

I tell ya, people are crazy in this town. Especially behind the wheel of their cars. Three times now, since Friday I've had an issue with drivers. Friday, coming home from work I was northbound in the intersection of Emerald Pkwy and Dublin Rd (with the green) and this ding dong in a Mercedes pulls right out in front of me. I think that's the closest to an accident that I've been since I kissed a tree when I was 16. What boils my blood is the attitude that I get from these people like its my fault. Last night, at the same intersection, it goes from two down to one lane and I was obviously going to slow and a jerk in a silver grand cherokee passes me on the right in the merge lane. He had OSU plates and a hitch cover. I say this because this really depresses me. Even Ohio State allows A-holes to graduate. Now this morning, this one takes the cake. Coming off of 270 onto Cleveland Ave South I need to get over three lanes to turn left onto Community Park Drive. I do that just fine, no one near me. I am several cars back the the green arrow comes on. It goes to yellow and three cars in front of me are off to the races to beat it. Theres no chance any of them are legally going to make it so I don't even try, that's not even a game I play. Well the nincompoop behind me lays on his horn screeches around me straight ahead down to the next light which is Corporate Exchange and turns left on two wheels. Now mind you, he has a fine piece of machinery. It was an early 90's red corolla with grey doors. He's obviously pulled this stunt before, but unsuccessfully. Well I come around to a stop sign and here he comes. He is hanging his head out the window the entire way past me yelling and various hand gestures at me. I turn left and am right behind him and we enter the same parking lot at the same time. He's still ranting. We got to the same place at the same time. I have no idea what is wrong with this guy. Why is he so upset that I didn't jump the light? This guy is going to have a stroke for no reason.

My point to all this ranting is what is wrong with people? Can anyone shed some light on this for me? I've had a bad string of luck lately in the car with idiots or traffic. And I just don't feel safe enough to ride my bike to work. There isn't a good East-West artery for me to take from home to work and back. Good Lord.