Is the solution to threats against satellite technology to militarize space or to build more robust systems that utilize ground, airborne, and space infrastruct

Is the solution to threats against satellite technology to militarize space or to build more robust systems that utilize ground, airborne, and space infrastructure? Do we need the ability to destroy earth from space when we already have MAD (https://en.m.wikipedia.org/wiki/Mutual_assured_destruction https://en.m.wikipedia.org/wiki/Mutual_assured_destruction), the nuclear triad (https://en.m.wikipedia.org/wiki/Nuclear_triad https://en.m.wikipedia.org/wiki/Nuclear_triad), and are currently engaged in proxy/brushfire wars like Afghanistan that have been leaching resources for over 16 years now?