Is it your opinion that existing weapons can't be added to existing civilian aircraft, that existing civilian aircraft can't be used in kamikaze attacks, or that already-developed military programs such as Neil Armstrong's X-20A DynaSoar aren't viable?
In part. Unless the available thrust is increased dramatically, there is no way that current weapons systems are going to make it to orbit, a~la SpaceShip One... at least not in meaningful quantity. Rutan's rocket engine design is scalable, though, so that could change - but the military is not going to invest in such a system without extensive testing. So, we're back where we began - needing a "stopgap" air-superiority fighter.
I compared Rutan's work with the X-planes, and the DynaSoar was to be an evolution of those experimetal aircraft. As a surveillance platform - or maybe a bomber skipping along the atmosphere like a flat rock across a pond (carrying one small nuclear warhead), yes, DynaSoar might've been viable. I doubt that it was ever envisioned as a platform which could take on swarms of enemy aircraft.
I keep asking you, where are the ICBM's to launch DynaSoars?