This problem is not limited to Arabic. Variants of the arabic alphabet are used by Persian (including Iranian and Dari dialects), Mazanderani, Qashqai, Luri, Gilaki, Kurdish (excluding Kurds in Turkey), Talysh, Azerbaijani (in Iran), Pamir languages, Pashto, Urdu, Balochi, Sindhi (in Pakistan), Punjabi (in Pakistan), Uzbek (in Afghanistan), Turkmen (in Afghanistan), Saraiki, Hindko, Brahui, languages spoken in Kashmir.

Whole languages are dying out because people are unable to express them properly on computers. Even popular software that dominate these speakers does not care to improve their experience. For example, Urdu has traditionally been written in the Nastaliq form [1], but is usually is rendered everywhere in the Naskh form [2]. There is no way to change this, for example, in Android without basically rooting it and changing the system fonts.

[1] https://en.wikipedia.org/wiki/Nastaliq

[2] https://en.wikipedia.org/wiki/Naskh_(script)

For a while, Arabizi was wildly popular and universally used on feature phones. When mobiles became smarter, it was used less. Japanese has romaji and Mandarin has pinyin. Arabic's Arabizi would increase literacy rates and solve all these digital problems.