Grouchy
To use an Alphabet product is to support Alphabet regardless of how you access it. If you want to de-google, then stop using their products 100%.
It boils down to consent. You should always always get consent before taking an action that includes somebody else. Just because you can see me is not consent to record me. If you don’t have consent, don’t do it. It’s as simple as that.
Look into Pixelfed.
So you want me to visit one of the greatest surveillance capitalist and privacy abusers video website to get tips on how to help people understand why privacy is important? Yah, about that. No.
If you have a Nextcloud instance, then https://apps.nextcloud.com/apps/phonetrack might work.
It’s developers working on their time to build an app they want. You don’t have the right to demand they do things your way.
Mastodon and friends are built as open conduits with very little in the way of safety or permissions. Spam should be expected.
It’s not a Fediverse vulnerability. It’s a Mastodon vulnerability. Don’t want spam? Use a better fediverse technology.