Not really a buyers market rn. Maybe this ideological position will specifically attract people who feel alienated by SV culture, maybe not. But there's no way that losing a large fraction of your engineering team is anything but a disaster.
I wouldn't call it SV culture. I think it's more the culture of people who are trying to use companies to promote their political ideals.
I grew up and first worked in a region where your employer was not your everything. People worked (often times with a diverse set of people) and then outside of work were part of other groups for their interests and ideologies. That separation enabled people from many walks of life to work together. I'd like to see more of this.