All our problems are just the engineering problem of AGI. Why waste money on something like this when AI will be "smarter" than us by the time it is built?
We should just do nothing and wait for AI to build the instruments it wants.
Maybe there is the slightest hope in this "overpriced" and long delayed space telescope that is getting ready right now but even with that the narrative will end up being how "AI finds alien planet" or "AI sees first star in the universe".
To really build a new LHC it just needs to be marketed to the populace as a tool for AI research. Done. Everyone knows AI is the future and we are not so stupid to skimp on AI research funding.
Spend all that money on researching particle physics though? What a fucking waste of money.