I come from a conservative background and I've never been discouraged from hanging out with different ethnicities and cultures. We are not the strawmen you apparently think we are.
Conversely when a few of my friends family found out I was an atheist they were no longer allowed to associate with me. A select few tried to convert me, others acted outright vitriolic towards me. This was in a major metro in CA.
Romantic relationships have also ended in the past when family members couldn't get over my lack of faith.