Nobody in the USA has a perfect life. No matter who you are, what you look like, what you do...there will always be someone that takes issue with SOMETHING.
Will a child get teased for what they wear on their head? Maybe. A child may be teased for the way s/he dresses. Or for being smart. Or for not being smart enough. Or for being short. Or for being tall. Or for being thin. Or for being fat. Or for being talented. Or for being talentless. Or for having nothing distinctive about them at all.
It has been almost 4 years since 9/11, and I think most Sikhs know that ignorance towards Sikhs existed before the Towers and the Pentagon was bombed.
There has been no mass-exodus of Sikhs from the U.S. Many of the Sikhs that have left the U.S. have done so because their visa has expired before they had a chance to earn permanent residnecy status - the deeply coveted "Green Card."
Not only has there been no mass-exodus of Sikhs, the population is growing. Most Sikhs that come to the U.S. on a non-immigrant visa (H1, R1, etc.) have full intention to find a LEGAL way to stay in the U.S., permanently. 10 years ago my city had 1 Gurdwara. Now it has 3. Smaller cities such as Richmond, VA or Hartford, CT sport Gurdwaras of their own.
Have there been hate crimes against Sikhs? Yes, by individual idiots.
However, in the 100 years that Sikhs have been in the U.S. there has been NOTHING even remotely like the threats that Sikhs have faced over the last 100 years in India.
Yes, many/most Americans do not know about Sikhs and Sikhism or even desis.
To be fair, it is also true that a similar proportion of emigrating Sikhs do not know much about American culture or Christianity or Judaism when they land on our shores.
Prabhdeep ji, I hope you don't mind if I point out a few things.
Your sentence: Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/showthread.php?t=2675
"brothers i wanted to know how do gore treat our sikh brothers "
America is far more than just "goray". Being white in America may get you a sunburn, but very little else. People of ALL races live and thrive in America. Poeple of both genders live and work and praise Waheguruji in America, not just brothers. To work in the workplace here, you MUST make decisions without mind to race and gender. Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/showthread.php?t=2675
Work hard, stay strong, and get a really good book on negotiation
Best of luck!