It seems particularly awful that the StackOverflow mods are trying to silence this, given that Stack Overflow and Microsoft are apparently using users' code to train AI models sold to Israel for their weapons and air strikes:

• Stack Overflow and OpenAI Partner to Strengthen the World’s Most Popular Large Language Models
• How US tech giants supplied Israel with AI models, raising questions about tech’s role in warfare

Don't the users have the right to object to this?

What you're looking for is Dove:

Dove is a suite of configurations & advanced modifications for Mozilla Thunderbird, designed to put the user first - with a focus on privacy, security, freedom, & usability.

https://codeberg.org/celenity/Dove