Why Are we Still Wasting Money on Russian Built Rockets?

With a cost of around 75 million dollars per mission that the US pays Russia to deploy astronauts to the I.S.S. (International Space Station), you would think by now we would have the sense to stop this non-sense. How much more money do we have to waste building their economy that we could use here? I can understand the space shuttle was nearing the end of its useful lifetime and commitments to the I.S.S. program required us to deliver cargo but how long is this going to continue? Private enterprise was supposed to be NASA's answer which has worked to a certain degree but relying on Russia does not help us and makes the country that has mostly dominated the space industry since the 60's now look pretty ridiculous.

If this is not bad enough, then you have private companies here also utilizing Russian built rocket engines because they are relatively cheap and generally reliable. That may make things convenient for them but does it really help us? Today, businesses are hurting and we're giving a country that is selling missiles to Iran and threatening to build 40 new nuclear weapons 75 million dollars a mission! How many jobs would that of created right here if someone was at least considerate enough to let American companies bid on the rockets? That is not smart business or good for national security.

See Also:

http://roberthaskell.blogspot.com/2015/08/is-nasa-making-making-historic-blunder.html
http://roberthaskell.blogspot.com/2015/07/americas-contributions-to-space-race.html
http://roberthaskell.blogspot.com/2015/07/why-sputnik-was-not-beginning-of-space.html