

From China’s geopolitical standpoint:
Taiwan lies between China and the Pacific Ocean.
Taiwan is part of the First Island Chain (which includes Japan, Taiwan, Philippines) — many of these are U.S.-aligned or host U.S. bases.
Control over Taiwan would:
Give China greater military and surveillance reach into the Pacific.
Potentially allow it to break out of U.S.-aligned containment.
Give it more control over critical sea lanes and access to deeper waters (vital for its navy).
I have 5 supermarkets to choose from within a 10 min walking distance