Google already protects campaigns from invalid clicks right?

Yes, Google and other search engines screen for invalid clicks.

However, many industry experts have questioned search engines’ commitment to tackling the issue.

Advertisers cannot ignore the direct benefits of invalid clicks/non-human traffic to advertising networks and search engines, as they directly benefit from the number of clicks delivered to advertisers, creating an obvious conflict of interest.

This conflict of interest suggests that search engines may not aggressively address non-human traffic or invalid clicks, as they profit from labeling more clicks as valid.