what I, and many other people, want is very simple tbh:
anti-heal debuff to have counterplay from the rest of the supports.
I don’t mean self-cleanse, nor do I mean having 1 single new hero with the ability to counter it (this would turn the monopoly to a duopoly, not solving the problem). I’m talking about an inherent counterplay against anti applied onto an ally.
none of what you said about ana addresses the core problem of how ana is simply inherently higher in the support balance hierarchy.
I reiterate: ana is a main healer that has an ability (that isn’t hard to land nor is it really unavailable) that practically hard counters her support competition, while also being able to decently fit well with any tank combo in 2-2-2.
the former bolded bit being the crux of the issue.