I don't know where you get the information tho, it's factually false.
Japanese have have /h/, /ç/, /ɸ/ consonants in ハ行 (written as ha - hi - fu or hu -he - ho but pronounced differently). The consonant /ɸ/ is generally transcribed as f in alphabet.
フ(f+u) is the only letter that pronaunce /ɸ/ in regular ハ行, but ファ行 (f + other vowels) indicates sounds with /ɸ/.
Transcription of wifi in Japanese is ワイファイ, not ワイハイ.
Not against the technology development itself, but it's a fix temporary, symptomatic treatment at best. It does not address the root cause.
In the analogy makeup, it needs to be cleansed every day and applied everday again to keep effectiveness and avoid adverse effect to the skin. Symptomatic treatment needs upkeep once employed while the root cause is still there. And in case of aerosol injectiom even after the root cause is resolved, retrieval of those particles from atmosphete is much difficult and costly. There are countless technology that seemed reasonal fix at the moment later revealed to be of harm due to oversight.
Is my pov doom and gloom? Maybe. However there are tremendous uncertainty, and the global nature of aerosol injection its effect on existing system is hard to predict, if not impossible. New technology develoment needs to come with development of its harm reduction / retrieval method (as in cleanser analogy).