No national government, especially the US government, should ever object to recognizing and having diplomatic relations with any foreign government (or group in control) regardless of whether or not we agree with whether or not they are the legitimate government, how they came to power, or what their policies may be. The reality is that such governments, regardless of what we think or what we wish may be the case, are, in fact, the ruling government of that country or portion thereof. To cut off diplomatic relations, a significant channel of public communication, with such regimes is childish and foolish. Talking and holding open any regular channel of communication does not mean that we approve of their policies. There are other, far more effective ways to bring about the desired change.