Agree mostly, but there are missiles we have that do not need TTR or HPRF, hence firing the missile and no bad guy will see it coming.
Optical tracking. It is what took down O'Grady in Bosnia. Stealth reduces the Radar cross-section, thus reducing the possibility of EW Radars to detect. Once a TTR finds you, no current amount of stealth tech can defeat it. Radar absorbing materials help reduce detection and can quite possibly break a TTR lock but it is quite difficult and the F-117 could not maneuver to break a lock. The newer F-35's are built to maneuver so they might be able to. Hope their RAWR gear is current.