[xnx]

You can use the three dot menu to the right of each URL in search results to submit feedback.

[nonfamous]

And how would one know to do that without clicking on the link first and potentially being exposed to malware?

The correct solution is for a public information campaign to inform everyone never to click on any "Ad" link in any Google search ever. It's the only way to prevent our parents and grandparents from being phished, hijacked, or worse.