the harpoon is a great ground base missile for Taiwan. this will give them the ability to sink Chinese LPDs, LST, LSM and civilian ships pressed into troops and supply duty in a future war vs Taiwan.
terrain and distance matter. china would have to do a amphibious and Air dropped to invade Taiwan. these operations would require a lot of seaborne support.
example a 1st way of 100,000 soldiers would needs a ton of logistical support.
the 2nd wave of ships would have to be mostly food, fuel, ammo and a few troops. till they secured a big beach head and either build a large docking or take one. remember taiwan has a population of plus 23m ppl.
china needs to greatly increase it Aerial refueling capabilities. same with it's amphibious and Air Transport capabilities.
1st they have to knocked out Taiwan's Air forces and air defense. storm the beaches.