Is ethnicity a hurdle for dating?

I am 25 and I'm brown, I have tried online dating and approaching women in person. I have always felt women respond to me differently than my friends (they even use my lines and help to chat up) and I don't even need to say anything about online dating I don't even get any matches.

I know that I'm not a good looking guy but I just want to how much of a hurdle is ethnicity in dating?
Is ethnicity a hurdle for dating?
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