Christianity is defined by the teachings of the Bible, and the Bible does not teach miscegenation or zionism (defending on how you define zionism).

Sadly many christians have indeed been tricked on these issues, but they are in error. Every aware person knows the jew organizes these things.

Christianity is anti miscegenation:
http://faithandheritage.com/2011/05/the-moral-status-of-miscegenation/

If zionism simply means the establishment of a jewish state somewhere in the world, there is nothing for Christians to oppose. Zionism is only an issue because Jews are doing so by leeching off of the western white world and particularly Christian America. In this case, really zionism isn't the issue but the power of the state to confiscate your money and put it towards those causes.