The point of Microsoft™ .NET framework is still a mistery for me.

I will never understand why someone would accept the drawbacks (resource consumption, slowness) of a virtual machine without the benefits of portability, even between the versions of the same framework on the same platform.

The various versions of .NET framework for the various languages can occupy more disk space than the operating system itself: code reuse or virus?

Is that bloated environment the future? No, there are better alternatives. Today you have the instruments to develop real cross-platform products.