LPs Cannot Even Get Their Money into Top Pod Shops Right?

Tons of pod shop talk (whether we are at the top or whether this is a secular change for the industry). One thing I have not seen as a potential rebuttal to the "death of the SM" talk is that the true alpha factories (Citadel and Millennium to me a cut above the rest) are not accepting outside capital anymore right? Like, it's a much different argument saying that the top SMs (Viking, Coatue) are going to die a slow death at the hands of a newer MM still looking to raise (Verition, Cinctive, maybe Baly idk) rather than at the hands of Citadel/Millennium (who are basically printing 3x the risk-free rate consistently and have been for years). Seems to me like all these "death of SM" posts assume that the best Multi-Managers are open to taking all of these SMs capital. To me, I just feel like the single-managers will begin to fall more into one of two buckets: 1) Become more like the MMs and employ a sector-head type approach with multiple people allocating capital at the firm depending on different industry specialization OR 2) Transition away from diversification and hold a concentrated basket of top-conviction ideas on the long and short side. Nothing else. Fees would need to come down but you can do this sustainably with much fewer people than you would need in a Multi-PM model. Also not sure of the claim that the top pod shops are not accepting capital that is just what it seems like.