The phrase Under God wasn't added to the Pledge of Allegiance until a half century after it was written and a decade after Congress initially adopted it. It was not intended by its original author. Additionally, the United States Constitution disallows the promotion of one religion over another. It should, therefore, be removed.
Yes, the phrase under God should be removed from the American pledge. Across the country, school boards are more aware of its discriminatory practice of forcing children in public schools to invoke a god they don't believe in. The first Amendment of the U.S. Constitution states the government shall not throw its weight behind religion, and public schools are funded by the federal government. Additionally, forcing atheistic children to recite the pledge goes against what their parents have taught them, so it infuriates the parents, as well.
The Pledge of Allegiance is a patriotic pledge, specifically a patriotic pledge for Americans. Tolerance, including tolerance of religion, was a significant principle in the founding of the United States. Thomas Jefferson, one of the most well-known founding fathers, was also known for espousing the separation of church and state, a concept written into the First Amendment to the United States Constitution. While under God is a somewhat ambiguous term that can apply to a number of beliefs, it is still too exclusionary overall.
Our nation was established upon principles inspired by "God." You don't have to believe in God to be appreciative of the role that he played in the establishment of our country. Acknowledging that we are a nation that recognizes "God-given rights" is not forcing anyone to convert to Christianity. Plus, let's not forget that you are not required to say the pledge. I am a high-school teacher and when we say the pledge in the morning, half of my kids salute, but don't recite the pledge. Nobody's right to free speech is being violated right now, but my right to free speech will be violated if you tell me that I cannot acknowledge God in my salute to the greatest country in the world every morning.
If the left really believes in tolerance and understanding, they would promote the fact that although you may be of another faith or no faith at all, you should still be respectful of the religious principles that this nation was established upon, and essentially "say thank you for your dinner" before you throw it in the trash or do whatever you want with it. (The metaphorical "dinner" representing the basic freedoms and rights of our country).
Even though America offers freedom of religion to all, its citizens should honor God. Regardless of what religion an individual follows, most religions believe in God; therefore, when the phrase Under God is stated as part of the Pledge of Allegiance, individuals should pay respects to the God that they trust. Taking away this phrase from the Pledge only supports atheism; it does not respect all other religions that trust in God.