Here's my new understanding of it after debating a little:
1. The fees are low for BCH because nobody is using it.
2. Larger block size DOES relieve congestion.
3. But even with 32x less congestion, it's still not enough to process all the world's transactions.
4. In the Bitcoin future that we want, where all the world's transactions go through Bitcoin, we would need something like 1GB blocks every second to handle the throughput.
5. Therefore some other solution is inherently needed in the long-run. BCH only solves a short-term problem.
Although... I think a short term solution could be huge for growth and adoption. And Lightning has all sorts of problems. I'm still a little mixed on it.
