Some older person walks into a place known to be a homosexual hangout and slams a newspaper onto a table. "My kid died from a gender operation!" People stare, taken aback. "You hide your ways now, or there'll be consequences!" The person looks around angrily, showing a firearm holster, and leaves, slamming the door behind them.

It's a made-up story, though I'm sure something along those lines has happened or otherwise is realistic; please read with charity.

While a tragedy, what should we expect among millions of people? The angry person supposedly provides evidence that such people have a negative impact on society, yet just points at one case pertaining to one individual here.

Someone else might nod, "one case is one case too many", and, in some other way, you don't really want to deny there was a tragedy.

Another story. There's plenty anti-EU sentiment to go around. Brexit is an example. There are some rules for acceptance, by and large commonsensical — democracy, stable enough economy, human rights, transparency — aspirational I guess, stuff you'd want. The EU is also intended as a larger, cooperative forum, including trade, markets, whatever. At the round-table, anti-EU'ers bring evidence.

Slovakia: Hate crime against refugees and migrants widespread but unreported
^{— Martina Sekulova · European Website on Integration · Feb, 19 2022}
A corruption scandal leaves the EU reeling
^{— The Economist · Dec 15, 2022}

More against the aspirations can be found of course. And you don't want to just wave those away.

Yet, as with the other example, something's amiss, maybe to do with scale/scope. Doesn't cancel the aspirations either — where people want to take things. For example, things realistically likely to happen can easily be appropriated as evidence. Though, against a larger backdrop, single point evidence can shift (relevance/importance/weight/...), after all, "evidence" isn't a magic word. In general, evidence isn't proof, though, in some cases, it can be (e.g. a counter-example to a universal proposition).

Anyway, this post isn't an exercise in formal logic, it's vague, yet looking for comments/insights, because something of this nature has been posted on the forum and elsewhere. Maybe I'm trying to express something that someone else knows everything about.