This is a weak argument. It is possible to both believe in free speech – that is, the right for anybody to publish whatever views they want – while simultaneously deciding that you do not want to publish those views yourself, nor support the publishing of them.
That is certainly true but it uncovers the issue of whether we consider free speech a value or not. Google is saying that it isn't.
It's going to get very problematic. When big players squeeze the Overton Window it becomes an Overton Bubble. We'll be blindsided by more electoral decisions that are puzzling due to preference falsification.
