I don't think it is unreasonable to have any of those things influence a purchase or a collection. Sometimes, that is part of the charm.
I like small US builders and have several. I very much like early Trek because of the American success story of it and the builders behind those bikes. Later Treks not so much. I don't have a dislike for later treks, but they are unlikely to find a permanent home in my collection.
Soviet bikes intrigue me. I don't own one, but would if given the right opportunity. Growing up, the US/Soviet conflict was something that made a lasting imprint on me. Having a bike from that era and the other side of the conflict would be cool.
People, personalities, politics, etc have always influenced my collecting interests across several different collectibles.