They are the only US company that can produce cutting edge chips now and realistically within the next 15+ years. It doesn’t matter that TSMC produces chips in the US. That is nice for the short term but doesn’t do much for the US in the long term if TSMC falls under China’s influence.
Intel is in the midst of a dramatic turnaround and huge shift in strategy. It might fail. But if they succeed it puts Intel and the US in a much stronger position in terms of technology and military leadership.