I think you are using open source zealtory, which has no merit at all.
Microsoft does share its source code with governments. That means a lot to anybody who is making a decision to buy Microsoft software. Everybody knows for sure that Microsoft's software has been checked out by other people who doesn't have a common interest to cheat you, China vs US etc...
On the other hand, we don't know who is really checking out open source. There is no formal way of knowing that.
You have no arguments, I think, you are simply one of the thousands of open source zealots who is more than ready to lie and distort facts or come up with all sorts of nonesense.