Intel doesn't need any more money, they got Softbank, Nvidia and let's not forget the government.
What Intel needs is customers for their processes, they failed with 18A to attract anyone "big", now they appear to be focussing solely on 14A, but you need your fabs pretty full to be competitive.
Would 14A makes sense for Apple? maybe, but then we are either dealing with 2nd source (bad idea, no 2 foundries, the companies, are "compatible", requires different design and will have performance differences), or, some specific products/chips are only made at Intel.
Betting on 14A for specific products - huge risks, Intel has no track record ...
And where does that leave the relationship with TSMC? TSMC has executed brilliantly, why leave them?
Intel needs to be successful to the degree of being able to support government, military etc, but the doesn't keep even their existing fabs full, leave alone the planned ones.
Also, Intel themselves are outsourcing to TSMC, so the chip groups know that Intels foundries are in trouble.
Big hurdles, and I think that their new CEO is in way over his head, it was a mistake to kick Gelsinger out.