How do you get black people's hair to be like white people's hair?

I don't know if you're a female or male, but some girls straighten their hair with a straightener to make their hair straighter - from blacks, to brunettes, to blondes.

In truth, you cannot. Even with products geared towards straightening a black person's hair, far more texture is felt in the hair even while straight than that of a white person's hair texture. While it will have the appearance of falling flat to the scalp like a white person, it still won't truly "be like" a white person's since black people's hair isn't meant to grow that way.