Why would you care about access to space if you do not plan to do there anything valuable?

The biggest issue with SLS+Orion is that these 40 billions could be spend on launching space telescopes or missions to other planets.

You could get 3 or 4 James Webb Space telescopes. 60 missions like Kepler. 12 Curiosity/Perseverance rovers.

One, single, SLS launch will cost 2 billion dollars!

That's already 3 Kepler Space Telescopes right there or a Curiosity rover on Mars.