There's a bunch of javascript webapps that won't let you even select text on screen, meaning this is the only way to get it into your clipboard. I had to use developer tools for years before firefox supported the clipboard API.
A machine that cannot be abused is unlikely to be useful for anything else. In this case, almost every time I work with LLMs I need to use the clipboard to transfer data.
That involves at least three steps - select the element in question, highlight all the text (which may not always be as simple as pressing Ctrl-A), then press Ctrl-V.
A click to copy button is one convenient step.
LLMs are no more special than sites like GitHub and many others, which all provide this feature.
If your app needs to do that, you instruct the user to select the text, and press C-c. We should not allow crap like this because they are too dumb to understand these instructions, or because your app is so special it just needs to do this on a click.
I'm not against that. Maybe a safe browswer mode (incognito) where this is disabled. Devs can polyfill to a popup that says (pleasue use ctrl c or right click copy.)
Who's "we"? I'm a software developer and I use click to copy buttons on websites all the time. Sites like GitHub, ChatGpt, and many more all have them, because they're useful. They're not "special", quite the opposite - this is a ubiquitous and useful feature.
It certainly could make sense to have a security setting that allows this capability to be controlled, in the same sort of way as allowing sites to access your geographic location. But simply saying "we should not allow" it is unrealistic and, frankly, pretty silly.