I think by using lightning the better tech should win. Better tech should provide more value to both business owners and consumers. It shouldn’t be zero sum. If you can compete with fees (like Robinhood did with stock trading) you can attract more users to the platform.

Market making is a hard business and without a huge liquidity provider you can bankrupt yourself especially with the scammers gaming the system but slapping massive fees to stop bad behavior punishes honest actors.