To fully comprehend that the political Left and Right are polar opposites is also to understand that the two completely opposite ideologies cannot co-exist.
This represents a great frustration to supporters of both the “liberal left” and of the “conservative right.”
Those on the “left” find themselves forced to compromise with the idea that at least “some capitalism” (on the Right) is necessary, for without it, there is little to no wealth for socialists to “re-distribute.” Those on the “right” find themselves forced to compromise with the notion that at least “some socialism” (on the Left) is necessary, for without it, the elderly, sick, and poor would be unable to survive.
Both camps share a common error. To the extent that each is sincere in its desire to address its concerns as stated (which is another matter entirely), the road to both ends (prosperity, security) has been clearly demonstrated to be Right: the environment of freedom and capitalism.