Even if 18A can catch TSMC, which I highly doubt, what does it matter if they don’t have any of the big chip designers like Apple and Nvidia?
TSMC not only has the best fabs, the chips fly out of those fabs at blinding speed.
IMHO, if you have a great product and a market with significant demand, seems like eventually the customers will come - and it seems like this is possible if Intel can retain manufacturing leadership for a few years and build out a better ecosystem to support external chip development by foundry customers, but this of course take time.