“Computer security 80% solved if we deprecate technology shown in this graphic”
As long as some platform is capable and powerful for many things, there will be malware. The reason why most (consumer-facing at least) malware isn't targeting Linux is because its desktop market share is like 3%. It's way better to target Windows on desktop since you can reach way more users that way.The only other alternative is turning your computer into a glorified phone (a.k.a. a locked-down media consumption device) where everything is nicely sandboxed and nothing has any kind of permission to do "bad" things. (Except tracking. Because guess what, the company who makes the OS also sells ads.)