Does yelling at your computer make it work better? (Perhaps an increasingly poor example in the age where voice commands are becoming popular.) Or figuring out what's wrong and doing what needs to be done to fix it? Gotta work with the facts on the ground, not how you think it should be. And maybe by doing so, you can move what is towards what should be.
In the case of working for user data privacy, we're working against companies that are benefiting from the data they collect and their lobbyists, as well as people who aren't aware of the situation and often only see the benefits of the apps they're using. And those people cross many demographic and political lines. I don't think user privacy is a partisan issue. It's going to be an uphill battle. You think pointing out all of the differences and disagreements of those who don't agree with you, all of the inconsistencies you see in their positions is going to help? I sincerely don't think so.
The point isn't that pointing out hypocrisy is wrong, it's that it gets in the way of your goals.
If it's more important to you to point out those inconsistencies than improve the user privacy situation, I think you have your priorities wrong. If you think you can only remedy the user privacy situation by first correcting their inconsistencies, I think that's wrong-headed and doomed to failure on both counts. But you're certainly entitled to your opinion and free to disregard mine.
Therefore, the left has no incentive to fight the bias of the press, because it favors their side on nearly every issue. The ironic part is that by making the misuse of Facebook data acceptable (even celebrated) when Obama did it, the press may have inadvertently helped Trump get elected years later. They’re upset now, but they’re just trying to put the genie that they unleashed back in the bottle. We reap what we sow.