The phrase "more card carrying" implies a sense of membership or affiliation with a particular group or organization. Antonyms for this phrase could include terms like "outsider," "non-member," "outcast," or "excluded." These words convey a sense of separateness or disassociation from a larger community or network. Other antonyms might include terms like "casual," "indifferent," or "uninvolved," which suggest a lack of commitment or interest in a particular group or cause. Ultimately, the choice of antonym will depend on the specific context and connotations of the original phrase.