To want to be in a relationship knowing that the other person will have a difficult time coping with my BPD?

I somewhat recently saw someone write about how people with BPD should not be in relationships. My first reaction is to think that's completely unfair and wrong, but then I think about how selfish I can be in a relationship. 

I don't know if I could find someone who would be understanding enough to want to be in a relationship with me... But even if I could, I have a hard time believing what I can offer would be worth it for them.