Originally a religious movement, Progressives at the time were usually very strongly anti-religion, hence the persecution of religion under “scientific socialism”. I don’t know anything about Sterling, but picking Christianity seems populist, a large part of most peoples’ lives. Lenin was more anti-religion (except Judaism) than Stalin, so maybe by this time some of them had chilled out.
But picking a lesbian who couldn’t buy a cake from a cake baker? That’s not profound. That’s a crying baby demanding social privilege. It’s the baker who is being deprived of his liberty, not the lesbian who is being deprived of a cake. The marijuana issue seems like a stretch also since everyone still does it. Remember, it was again the Progressives who banned alcohol, and fueled an industry of high proof spirits. You also mentioned the Quran being banned in V for Vendetta. In reality, England has hate speech laws. You go to jail for criticizing Islam.
All your examples are stiflingly politically correct. Notice what you didn’t pick. Gun control, self defense. Anti-vaccination. Homeschooling. Heck, raw milk. I think the free speech issue is what makes this episode so prescient, and today it’s all these so called victim groups empowered to take it away. Aren’t we here right now because IMDb shut down?