I hate Electron apps, too, but I've not heard people complain about security before. What's the security problem with Electron apps?
I understand that you're basically running a Node.js instance for each app, but why is that more insecure than running, say, a GTK app? Since GTK and Node.js are written in C and C++, respectively, my gut instinct would be to assume they're equally likely to have security bugs.