Probably about as many are nutty libertarians and literal Nazis.  The only trend I've noticed in software engineers is being a bit extreme and a bit cocksure.  Otherwise their politics tend toward the geographic trend.  So sure in Seattle you're going to have a preponderance of Antifa types, and I ack that there is a concentration on the left coast but if you compare them to surrounding peoe in other professions I would say they are more based than anything. Also keep in mind we USED to be primarily white males.  Now I guess that's probably not true although there are still a lot at good shops.