Is this map [1] up-to-date? It shows some 150kW+ chargers in both Europe and North America, but I expected a lot more (given your claim).
It's probably also relevant that the usual mains sockets in a European house can provide around 3kW, around double the US. Installing a new circuit (with thicker wiring) increases that to around 7kW at a fairly low expense. That makes it much easier to charge at home (spend €150 to have the extra circuit installed), or when visiting a house/office (use the nearest normal socket).