Transaction costs are only a problem for one use case of Bitcoin (small payments). Other use cases, like hoarding and international remittances, aren't affected

Transaction costs are only a problem for one use case of Bitcoin (small payments). Other use cases, like hoarding and international remittances, aren't affected by it. Bitcoin does scale, just not in the direction everyone thinks it should, which is transactions per second. It scales spectacularly well in two important other directions: number of validating nodes and hash rate.