Also it's not uncommon for words like ろ過（濾過）to be written in part kanji especially in news... if that trend continues beyond the 常用 kanji we might end up with a Japanese that is closer to Korean.
The Japanese economy has been stagnant for over 30 years with no end in sight. Following the same logic, Japan should perhaps “modernize” their language by following China, which is a ridiculous conclusion as you can tell.
Tokyo from Beijing(2000km/1200mi) is about as far out as Paris to Kyiv. Far East countries are also separated by seas, like Mediterranean countries across the sea. I doubt a lot of Parisians have meaningful ideas of "basically Latin" Ukrainian any way or form, or Italians with Tunisian, but there's such false instinct that forms out of above-mentioned presentation that those Asians are rather next door neighbors.
That and mistaking personal difficulties and inefficiencies associated with understanding languages in non-native manners as inferiority of the foreign one.
1. That Chinese writing is inherently inefficient. It's actually very efficient...to read. And nothing beats the efficiency of having a script that maps perfectly to the language. Also as sibling comment notes, UTF-8 is a thing.
2. That there is no relation between written characters and phonetics. Incorrect, as several sibling comments point out.
3. That Japanese kana represents a successful "modernization" of kanji that Chinese should emulate.
4. That Chinese is "basically kanji" - assuming the Chinese and Japanese languages are essentially interchangeable. They...are not. I can't even begin to emphasize how much they are not. Chinese is subject-verb-object while Japanese is subject-object-verb, for instance. Chinese also has many phonemes that are incompatible with Japanese, which would not be covered in hiragana. Finally, kanji came from Chinese and has subtle differences and while it is mostly a subset of Chinese hanz, it has its own slightly different character set