I only want to date people of a certain race
What race do you want to date?
I'm only interested in dating people of my race.
You shouldn't judge people based on their race and while we all have our personal attractions, you should open your mind a bit. Limiting yourself to only dating one race is not only discriminatory, but you might be missing out on a truly wonderful relationship.
I can help it so i don't want to date others.
I think you should think about what has caused you to feel this way and hopefully you'll realize how this worldview isn't a good thing.