If you aren't saying that "science isn't science without collaboration," can you give an example of something that is science without collaboration? I only ask because you state that's not what you're saying, but follow it up with what, to my attempt at reading comprehension, is you just restating the thing you said you aren't saying.

And I would argue science done in secret can have enormous impacts beyond "simply profits." The Manhattan Project for example. I think it would be absurd to say what was going on there was anything but science, but there was no collaboration with the greater scientific community or intent to share their findings.

And look, of course you can be a researcher without being a scientist. Historians are researchers but not scientists obviously. But when what you are researching is physics and natural sciences, you are a scientist. That's what the word literally means. When your definition requires you to eliminate Sir Isaac Newton, maybe it's your definition that's wrong.

You say you see no problem with calling an apple a fruit when broadly speaking. Neither do I. But that doesn't mean that I wouldn't be absolutely delusional to insist that an apple wasn't actually an apple.