Geez, what a miserable existence you must lead. Everyone is out to get you.
I've lived in Houston as well and many other cities, and yes, Houston is a very different type of city. But to claim that politicians purposely want to keep you from traveling around town? Come on. Metro has done a lot to try to get people to get out of their cars, and people around here just don't want to. They like their cars. So no, there is not going to be a direct bus from Greenspoint to Baytown, because there is not enough demand for it.
Houston is a HUGE metro area (600 sq miles compared to New York city at 305, Chicago 225, LA 460, Dallas 180), and you can find a bus from anywhere in the city to the Galleria, Medical Center, and Downtown. If you need to go from one city suburb to the next, then use one of those hubs, or drive. There's even a trip planner on the website, that will tell you when to arrive and when you will get there.
It's not rocket science, and nobody is out to get you. I've been successfully using the bus system for 4 years now. Yes, it takes about 50-100% longer to take the bus than to drive, I just make sure to leave early.