Then you fly a different approach that has the required ground stations operative. This might even have to be at a different airport!
At least in the US, the rule is that you cannot descend below the assigned altitude until established on a published segment of the approach. And the ATC phraseology to back this up on every approach is "maintain XXXX feet until established, cleared for the..." I assume that the rest of the developed world is the same. (Am I right or wrong in this?) In your scenario, what segment are you established on?
There is no such thing as a glideslope-only approach.
Also, on some aircraft, in flight, TOGA is armed when G/S is captured. What happens to aircraft which won't let you arm TOGA because of this "Loc first" rule?
Is this really true, or a lack of understanding of the systems on the part of the crew? I find it extremely hard to believe that a plane can't set goaround thrust without a glideslope. So what, that type cannot fly a non-precision or visual approach?