Interesting. Could you provide a better alternative? Preferably even remotely as user friendly as signal/whatsapp?

Following the conversation down, it sounds like what you're really saying is that Signal stores sensitive information encrypted with PIN+SGX, which is controversial. And maybe you have a good argument for why it's bad (and I'm uneasy with it myself). But I think people don't like that you made the assumption for them that PIN+SGX is bad.

I'm a big signal user yet skeptical that it's not directly involved with intelligence agencies. That's all to say, this sounds like FUD but I think it should be taken seriously. Out of curiosity, where have you read this?

Obligatory request to provide a source to backup some serious claims?

Can you elaborate? I'm semi-familiar with the Signal protocol but I'm not sure what you are referring to here.