It’s fine to refuse to help, but offering your unsolicited opinion on windows instead of helping is just rude.

I know you think you’re being clever. But what you really are is arrogant. Telling someone the answer to their problem is to do as you do, instead of helping them with their issue.

That’s great but all it takes is some of your blood relatives to submit their genetic data and they can calculate your genetics to a degree that is accurate enough.