It seems like you know this but just to be explicit; not a damn thing. MQTT rides over TCP, this is like suggesting TLS to fix ethernet broadcast storms.
I do think the suggestion of switching to MQTT nicely illustrates the problem though; even relatively technically inclined people frequently have absolutely no idea how their iot devices work.
I do think the suggestion of switching to MQTT nicely illustrates the problem though; even relatively technically inclined people frequently have absolutely no idea how their iot devices work.