Missiles, radar, ai, communications, R&D. The list of reasons why your wrong writes itself.
For Chinas purposes ( war ) they want the best ones. You need these good chips to have missiles that can at least match your opponent. China wants to make AI powered ship killing missiles and they can’t really make them without these chip making facilities.
This is exactly why they want Taiwan. They can make chips, just not the greatest ones. Taiwan literally helped invent the most advanced way of growing platters around.
Remember these people are ill. Social media addiction will be studied for years to come. Bashing these kind of people will only push them to these apps and worsen the problem. The more honest we are, the faster this will turn around. Call these people sick to their face and watch them writhe and squirm as they try and justify it. It looks ugly but it will do them a load of help compared to nothing.