From what I've heard, low scores and failed attempts are of course negative, but they should not be stigmatized.
Work harder and get a much better, above average step 2 and step 3 score. Then apply for observships and research, and try to get LORs and connections.
Apply for the match and then just see what happens.
Being realistic and following statistics should be for a guidance not a verdict. You can only be 100% sure that it's a NO when a PD actually tells you it's a NO. (or if you don't get an answer to your application of course).