Critical theory and justifications for essentially Marxist ideologies have pretty much nothing to do with Kripke, who was writing within a strict Anglo-American/analytic tradition. Kripke didn't invent any kind of magical thinking. His contribution to modal logic was that he showed, formally, its completeness (as a teenager, too).
You seem to be pointing at a common critique of poststructuralist thinking as focused on the "dissolution" and "destruction" of meaning. This has a lot more to do with Derrida, who wrote strictly in a continental tradition. Critical theories do not rest on modal logics, since many of them are anti-foundationalist in nature, they would probably not rest on anything except works in the 'critical theory' canon (e.g. Marx, Adorno, Foucault, etc).
Ironically, and I mean this sincerely, but if you had actually read anything by Kripke (or critical theorists), you would realize that his most famous work after completing modal logic was restructuring semantics in a way that espoused scientific essentialism (cf. Naming and Necessity). That is something critical theorists would very likely be antagonistic towards.