Unfortunately, and also not so surprisingly, there is a small-but-vocal group taking issue with the Doctor becoming a woman for the foreseeable future. This sort of knee-jerk reaction is typical when something like this is first announced, as is the knee-jerk reaction by others to respond, but it's important to remember that the people leaving the foulest comments are far fewer in number than the rest. Take this comment for instance, which tries to understand why a female lead on a show about time travel and aliens and robots is so hard to grasp for others.