It's very simple: googling and copying should be a method of last resort. Behind even "googling and learning and then writing your own code based on what you learned," for instance. I'd bet I do it less than once a week. (Trying to find something through google and FAILING to find a useful answer is, sadly, much more common for me.)

Copilot makes it a method of FIRST resort.

If I know what I'm doing, and know I should escape my inputs... but copilot barfs up a block copied from someone who didn't... now I have to retrain myself to spend time reading the suggested code for stupid shit like that versus just using my own knowledge in the first place.

That's a far cry from "i know the method name I want has 'string' in it somewhere"-style autocomplete.

You're basically importing a library of "every stupid crap anyone committed to github" and just hoping the the library functions in it are safe and reasonable. That's a crazy dependency to bring into your project if your own programming skills are above that of the median github user.