If you would supply a reply with a more complete description of what you hope to convey, with less invective our discussion could be more productive. Enumerating the states you refer to would be a good start.  

Your statement that for the example I gave resulted in a win the the Red team is so incomplete it is impossible to respond. But for the record, that district was drawn by the Democrats in Illinois who controlled both legislative chambers at the time and still do.

As I replied to BG, indeed the Republicans engage in Gerrymandering. He was attempting to make the point that this and voter suppression is how the Republicans have achieved their rise to power. I merely showed two things, 1) the Democrats also participate in Gerrymandering and 2) the Republicans have taken control in many areas (such as Iowa) where gerrymandering obviously does not exist. Therefore it is clear that the rise of Republicans is due to reasons that go well beyond redistricting tricks.

Also, while gerrymandering can be used to hold onto power for a party as a whole, it is used far more often to protect certain individuals. These individuals are people of power and they use that power to control the redistricting in order to maintain that power not so much for the benefit of the party. Additionally, whenever a safe district is created for the party in power it also tends to create another district that will trend toward being safe for the opposite party. This is the dirty little secret that the two parties scratch each other to a degree so that long time power brokers can hold onto power in both parties.