How can you describe something as “objectively” horrible-looking? Your opinion on the way that something looks is precisely that: an opinion. I’d add that neither the Arabic nor Latin alphabets were designed for anything. They both evolved organically from other previous alphabets.
> an opinion
I didn't read my comment properly. I have written, why Arabic alphabet is horrible. It's all cursive and letters aren't different enough from each other.
> I’d add that neither the Arabic nor Latin alphabets were designed for anything. They both evolved organically from other previous alphabets.
Many alphabets evolved from a need for daily stuff like accounting, where practicality matters. Arabs didn't have widespread alphabet until they needed writing their sacred texts, so, they have invented an alphabet primary designed for that. Other alphabetical systems were already widespread in the regions currently dominated by the Arabic alphabet and many of them look much better.