You are not accepting that this topic is about electrum's security model and not about mine. In your opinion I should mitigate all vulnerabilities and flaws that electrum has and will ever have.
You are welcome to take your suggestions to
Electrum's GitHub, explain your reasoning, and propose new solutions. Anyone can create a new issue thread. Who knows, maybe you will even get some support by the community. I remain skeptical, but that's just me. Maybe the Electrum developers even have a way to check how often a feature of their software is used. Although that would look like spying on their customers. Ask and see if there is any data that can back up your theory of unused and unwanted features.