On each and every point your view is only true in very isolated and niche situations, while simultaneously begging the question that you’ve run out of memory in the first place.
Linux is not good for desktop environments for exactly the reasons you outline here (and many more). It’s not Electron’s fault you’ve used the wrong tool for your desktop OS.
It's very antisocial to tell people they're using the wrong tools. In today's world, it's becoming no longer sustainable to respond to wasted resources by asking the world to purchase more resources (resulting in even more waste in the long term) to accommodate it. Conservation is becoming increasingly important.
Is it antisocial to tell someone they're being antisocial?
And you're using the words "wasted" wrong, assuming you're referring to the memory footprint of Electron. Electron uses memory to solve a compatibility problem, that's not wasted at all.
One person's benefit is another person's waste. If you think there's not room for vehement disagreement around how best to use space, go watch an episode of Hoarders.