Ken, whilst your post is technically correct, perhaps you overlook that the technology which enables the ‘fighter’ to get into a position to fire a missile, should also be available for terminal guidance of the weapon system.
Also if the target was ground based then a strike weapon system might be tolerant to late stage aerodynamic guidance.
The alternative of space-space intercept system would pose more problems, but some of the issues of an air-space operation appear to have been solved.
An exception might be the need to preposition the launch aircraft with respect to the target to be defended - range; thence the discussion of the advantage of increased range. (how to defend a target - sub fleet, without pre positioning a defence so it does not disclose the target's location).