The difference is that there is now a lot of support for British imperialism.

I don't disagree but I still can't help myself from enjoying Doctor Who.

But you'd think a time travelling alien would be a lot more terrified and saddened by the material conditions of the 20/21st century. The Doctor can travel time and space and thus would have seen the very best and most equitable systems sentient beings have ever created. The show definitely forwards a very hobbesian ideology in that even when humans / sentient beings have no scarcity, they still end up doing evil things because apparently sentient beings are inherently selfish and bad.

And I'm sure there is an argument that the doctor saving the day reflects a sort of "white man's burden" discourse.

With all that said, i still think it's one of the best sci-fi TV shows.