Why people of most of the western countries hate indians?
I think this is all a matter of perspective.
Most minorities around the world tend to be marginalized due to the effects of colonization, which is the establishment of control over a group(s) of Indigenous people. People may see and talk about it in many different ways. This seems to be the way that you see it?
I would consider where or who you are getting this information or feeling from. What is the background to that story? Are these people and channels of information included in your daily experiences? If so, think about what you can do to change those influences in your circle. It is your choice who you want to keep in your circle. It is your choice what types of information you give your time to.
Ultimately, how you see this world is up to you. Decide what you want to give your energy to.
Best of luck!