That would be nice, but does not seem realistic to me. Technology is producing new paradigms for waging war, in every theatre. There are ever-increasing asymmetrical capabilities. Rogue states like NK and Iran can do great damage. And peer adversaries can quickly wipe out our advantages as you suggest. Much better to acknowledge that we need better offense and defense and build those capabilities.
That is one path but its arguable that its the better path. Weaponizing space has several risks.
One, its VERY expensive, and we have limited resources. If you allocate 5 billion more for space, that costs the Navy a carrier, or the air force its next generation bomber. Its not for free.
Two, if we do have a space war exchange, the high ground now becomes a waste land for all. But we use and need that high ground most, so we stand to lose the most.
Three, weaponizing makes conflict more likely. We, the Russians, and the Chinese have spent huge sums on nuclear forces that we hope to never use. Unlike the nuclear forces, a war in space wont cost lives directly so its easier for one side to pull the trigger. For reason two, our goal is really not to have that conflict. So we would like to avoid, for reason one, spending all that extra national treasure (TAX PAYER dollars) if ultimately we don't want to use it and it could be better spent elsewhere.