Who says they’re in opposition? After all, at their extremes they absolutely converge, don’t they? (e.g. Nazism and Communism).
‘Right-wingers’ and ‘left-wingers’ need to embrace and harmonize instead of discrediting each other.
The healthy Right-winger stands uncompromisingly firm on Truth.
The healthy Left-winger lives life with deep caring and compassion.
Our spiritual evolution requires of us the inclusion of both!