You are mixing up two different things here. It's true that individuals inevitably have complex, multidimensional views on reality and, therefore, need to concentrate on cooperation based on shared interests. An organization, particularly one based on volunteering and donations, on the other hand, can and should choose a narrow set of goals and pursue them without taking any more sides than necessary. Otherwise people may and will withhold support for that organization because they disagree with its secondary goals.

Political bias is generally supposed to be bad for business, and the current tendency of tech companies to take active political stance is a sign that something very rotten has happened to the public discourse. Indeed: entire sectors of society (mass media, universities, now tech companies) are becoming increasingly hostile towards still widespread conservative views, excluding huge sections of the population from political debate and deligitimizing their views. That population is now oppressed and unable to advocate their views in a public way, but they can still vote, so now USA has leftist mass media going nuts over the election of President Trump. But it's not going to end there: when the conservatives realize that Trump has failed to turn this oppression around, it might come to violence and who knows what else.