That would be terrible for AMD, nobody wants an aging arch, not even for budget systems. They could keep selling their current lineup for entry prices but I doubt that would be financially viable since they would be competing with the second hand market.
They would need 100% of tsmc output to get 50/50 with intel current output, not just of the cutting edge nodes, but total output of tsmc.
I'm sure intel IDM 2 is waiting for them open handed if they want to expand.
AMD made 786 millions this quarter and that includes all GPU sales and all console sales...it's not CPUs alone.
Cost of sales has increases the same amount as revenue has and on top of that r&d and marketing has increased.