You can flag the ad using Adwords Feedback form here: https://yt.be/help/8yXr . You may not get a direct response, but the details will help us to identify & fix issues. Also, you can control the type of ads you see by changing the preferences: https://yt.be/help/73ZW
Appreciate the info. As a next step, please send us a feedback report with as many details as possible for the right team to investigate: https://yt.be/help/N51J . You may not receive a response, but we do review everything to identify issues and fix them.