Well, someone's brain is pretty limited. No, one can be a Christian and still not be a bigot, and the vast majority of Christians are not bigots. But you SHOULD be upset that bigots are using Christianity as their excuse, and tarnishing the faith in the process. Christ taught the very opposite of what these "Christians" are doing.
Wrong. Christians who are labeling other Christians as bigots are at best misguided, and at worst.....hypocrites and even bigots themselves.