I wonder if Elon wants to tangle all his businesses into SpaceX so they are all kept afloat by SpaceX's importance.
The biggest selling point /was/ that Musk was being managed there, he wasn't tinkering with SpaceX like Twitter or Tesla, and his foolhardy direction was kept out of the company.
BUT, like Tesla, Musk cannot help himself and is making SpaceX look like a very bad investment - tying his other interests with SpaceX, allegedly using SpaceX money as a "war chest" in his battles.
There is also a danger that investors will see xAI as politically dangerous, which will really hurt SpaceX IPO
They're also probably rushing out the IPO to beat the bubble pop. I think everyone earlier expected to keep the bubble going a few more years, that's why they made all those circular deals. But then Trump spooked Europe into possibly scaling back US investments and decoupling from US tech. So now you have an unsure Nvidia walking back their OpenAI deal, etc.