Here's a suggestion, to try to ensure this policy will likely just fail:

Try doing protests around the following locations:

YouTube, 901 Cherry Ave. San Bruno, CA 94066. USA

Google, 1600 Amphitheatre Parkway Mountain View, CA 94043

Palace of Westminster, London (Included, because UK's Online Safety Act is theorized by some to inspire YouTube to do similar acts)

Keep in mind that the protests have to be peaceful, not violent. We don't want to get arrested. Let's protest positively, Thank you. This is not over yet, since the policy will be implemented today, and this petition will remain open until the new feature is abandoned.