Of course it’s not correct. I have no idea why people speak so confidently about electrolysis not being “scalable” when, in fact, that used to be pretty much the primary way of making hydrogen for ammonia.

Also, the US used to double electricity generation every decade. If something needs a bit more electricity, there’s no “scaling” argument why we can’t just produce more electricity. It costs money, of course, but there’s no part of it that isn’t “scalable.”