To make things worse consulting companies live of cheap developers (like interns) and Microsoft and their platform makes things easier for anyone to code and deploy

You're saying this as it is a bad thing when it is not though; better defined APIs and ecosystems that lift cognitive load from you is always a good thing, there is no way to spin that as a negative.

I think dotnet offers an incredibly good ecosystem for development, and I say this as someone that wants to jump ship and change the stack. What pains me the most about the stack is nothing technical. It's not even the past predatory moves of microsoft, but the developer culture that surrounds it. Most dotnet devs I've worked with and talked to seem to be people that simply use visual studio as a window to the rest of the world. They tend to have very poor knowledge about almost everything with barely any fundamentals.

Not sure I follow your point about open source; I think everything we use at work is open source already. Everything is on github and there are quite a lot of discussions in how to steer the language and ecosystem being made in the wide open. It reminds me of the openjdk and python ecosystems. Third party libraries are all open source and have been since almost forever. There is still some closed source culture but not much.