I also distrust radicalism (which I define as involving tearing down at least some part of the existing institutional structure). Over the last few decades we have been witnessing the unraveling of Liberal society, mostly related to our economy's societal outcomes (including issues of taxation and pubic debt as well as poverty and sustainability).

If people who are not radicals refuse to lift a finger to transform the outcomes for society of the existing economy--while preserving the whole of the existing institutional structure--then as the unraveling continues more radicalism and greater strife, ending who knows where, is all we can expect.

"For Crying Out Loud, ACCEPT That A SOLUTION Actually EXISTS" (a "3 min read"--including options for further reading--here in Medium). [Even with tutoring, I am unable to embed links in this new Response platform.]

Ultimately, it is a matter of re-thinking justice: "Equality Is All We Need."

Equality implies mutual respect as the ethic of justice; mutual respect already informs the theory of democracy; a society governed by mutual respect as its ethic of justice would maximize as a practical matter the liberty that co-existing people can share; mutual respect can be applied efficaciously to the economy (see "For Crying Out Loud...").