I would think that if there is any language that could be a viable alternative to English for programming, it would be Chinese: more native speakers than any ot

I would think that if there is any language that could be a viable alternative to English for programming, it would be Chinese: more native speakers than any other language, and with a writing system distant enough from that of English that learning English might actually constitute a significant barrier. Spanish is just not there. Yes, there are a lot of native speakers, but it's close enough to English that it's probably not going to be worthwhile to most Spanish-speaking programmers to participate in the alternative ecosystem (not to mention that it has less economic clout than Chinese).