It is certainly bad behavior that Microsoft did this. But it's irrational to jump from there to "this is what they always did and always will do" as OP did. Corporations are not unchangeable monoliths, and it was perfectly reasonable to use Microsoft tools when they were acting decently towards their users. Now that they have turned user-hostile, it makes sense to avoid them until they learn their lesson, and so on.

People act like a corporation has character traits, as a person does. But it doesn't. You can't strongly predict future behavior based on the present the way you can with a person, so it makes no sense to have seething eternal hatred for a company.