We have gone back, both China and India have recently landed on the moon and NASA has a manned mission going back next year I think.

We can't go back today because we don't have a fucking rocket.

If we had the rocket of course we could go back but we don't. Rebuilding the original rocket is very hard or impossible due to how it was contracted and the fact that many of the suppliers don't exist any more and much of the knowledge is lost.

Of course the actual technology we have is sufficient. Rockets are extremely simple when it comes to computers. Most calculations needed for actual burns could be done on paper or a video game nowadays.

We could of course build a new rocket but that is really expensive and the budgets for these things are far lower nowadays compared to the cold war. Still we are actually planning on going there soon-ish.

Well the "super computer" argument is just not good because this wasnt an all purpose computer. This was specially build for this task. There are tons of special purpose chips today that wont be able to do general purpuse computing but crush a beefy pc in special tasks. Video encoding for example or tons of other tasks.

If you are actually arguing that our accomplishments in space aren't real, in good faith, you are very uneducated on the topic.

If the US made up the moon landing, we have many nations that have the technology to call out the lie. Yet none have, not even supposed 'enemies' of the US.

That one seems harder to 'work out', than your assumption that we couldn't go to space with the technology at the time.

People have even simulated the first moon landing using the same Apollo guidance code used in 1969. So there is a lot of evidence for anyone to work that one out.