These are all very reasonable points, though I’m not sure any invalidate my core argument, which is that entrepreneurs shouldn’t worry about a big company trying to “steal their ideas.”
Ultimately, they can’t stop those big companies. However, by the time a big company is trying to steal your idea, it means you’re doing something right. It means you were successful enough to get on their radar, and that means you’ve made a ton of progress.
Again, I’m not arguing that anyone should be popping the champagne when it happens. I’m just noting that there are more productive things to worry about.