Imagine if you asked what makes Steven Spielberg dictatorial power over all our screens! Not even paying him money gives you a veto on his casting choices. What you are experiencing is the expectation of continuing to receive a benefit, useful software, interpreting no longer receiving the same quality software as a loss, and intuiting that you have a rights to avoid that loss. You don't because the benefit was unearned in the first place.

This doesn't mean you don't have a right to discuss or critique and discuss and if appropriately fork or write you own.