So this is a concern to me and it's interesting to see how Google (and Facebook) will handle this. The bias that I have is that information is to "inform". I use these computer products to find out what I need, not what I want. But not everyone uses these systems the same way nor do they want the same things.
The new continuum of these folks (AltRight, give it a name) want validation on their identity and the world as they see it. At a certain point the hard decision is that their needs, perceived as they may be, can not be served by these products. The extreme example (and a biased one I will admit) is that you don't make cute cuddly pink guns, because guns are a tool that kill things, and focus on a gun that children can use is something we all agree (mostly) is not something that should exist.
The dilemma for these companies is acknowledging that these products and services they offer can not be used in a way that is inconsistent with the folks that made them, and it will just have to be what it is. If who you are is it at odds with a core product or service, then frankly that product or service can not (and should not) be re-engineered to serve those needs. They will derive no benefit, logistical or spiritual (yes, I went there) by using these products until they change who they are.
Changing who you are, whether it's 1st or 2nd or 3rd generational feminism, human rights, or smoking in public all are societal changes that there will always be folks who don't adopt. A search for truth is not something for everyone, but these products and services must, and will eventually, go back to the reason for their existence, even if it in the end it's perceived as the "biases" of those who made them.
The natural eventual conclusion is if these folks attempt to re-create an alternative that works for them instead of using the one's creating by those they disagree with; In the long analysis an "Alt-Right" Google will be no more effective than a Creationist Museum. It is what it is.
Eventually, by the long path perhaps, Google, Facebook and the like will come around to playing to the larger shared values as we all do, and also playing to their strengths and who they are.