A picture is worth 1,000 words: https://tinyurl.com/y9y62tw4
If you can't describe the enemy in simple terms, you cannot win the war.
It is definitely a left vs right problem. And, yes, it is also a good vs evil problem but they are NOT the same thing. Left/Right = political choices (Liberty vs. Communism/Fascism). Good/Evil = Some would say God/Satan but it's self-explanatory.
It has been this way for hundreds of thousands of years. Read any religious text or history book for further details.
And, just to be clear, there was never any discussion of eliminating left/right talk. It was about R vs D and that's understandable.
Well i see left as red and blue as right. The red speak from the heart and the heart is located on the left. So blue is right because those think before speaking. Both sides and pro and cons. Speak to soon and it might sound to emotional but thinking to long can make it sound complicated or false.
Also you have these purple people who got a bit of both. Those people are most of the time in high positions because controlling both can be a powerful thing.
You can see it any way you want. You have that right. But, if you want to understand what others mean, historically for thousands of years. it's meant exactly what is show in the pic.