Your argument here seems very circular to me.
You ask "when did we decide that?". That implies that there is some discrete point in time in the past when societal decisions are made. But that's not how societies work, not how politics work. The way it works is that we are continuously "deciding" things like this, through conversations like the one here, and articles like the one we're talking about. It doesn't make sense to say, "this article is reaching for abstract targets that we haven't decided on", because there is no decision point in the past like that, we're discussing what we want right now, in this moment, and the article is part of that discussion.
You claim that ideas "we like" are not what is pertinent. But that's also not the way societies and politics work. If we as a society decide that this is a good thing to strive for, that "we like" the idea, we can do that. We can decide we want to do that and discuss it and brainstorm ways to achieve it. Looking at what other countries have done is definitely an interesting input in that discussion, but it certainly isn't the only thing that is pertinent.
I think you should just say "I am unconvinced that this should be a goal we have as a society". You seem to be trying to appeal to some larger power, some discrete ledger of things we have decided on, but really I think what you're saying is that you are personally skeptical of this, and perhaps that you believe many others in the society are skeptical of it. Which is cool (I may even agree with that, I'm not sure yet), but it would be more clear to just say that.