Firstly I think with you about radio waves and how it is possible to get an interfrence of them and after only we think about the double slits intensity distribution.
Destructive interference is possible for radio waves. Two radio sources of the same frequency and a receiving antenna at a point where the two signals have opposite amplitudes let half of the involved electrons in the rod move down and half of them move up. This is the only case one may talk about destructive interference.
If one put two measuring instruments behind two crossing radio waves (in the crossing point perfectly I with opposite amplitudes), one get the full signal on both instruments. The reason is the following. Radio waves consist of photons. They do not interact and cross each over indisturbed.
Interference in the double slit experiment is a method to calculate the intensity distribution behind the slits. There are single photon experiments. A real destructive interference for the dark areas (destruction of the photon) implies that two photons should arrive in the case of the constructive interference. That is impossible of course.
To me it is unsatisfying that the transition through slits doesn’t involve the slit’s surface electrons as part of the process. A quantized redirection of the photons towards the screen is the less mysterious explanation. It let be the photon be a indivisible quanta, oscillating with its E- and B-field component from the emission until the absorption.