Whelp who would have thought our allies would be insulted on national TV...

War is a constant in the world. World War is a different thing, and the meme says WWIII.

Here's how:

Even unopposed invading Taiwan would cost China more than anyone else. It would mean attacking one of their largest trading partners and sources of income/currency exchange, and they have huge influence over Taiwan already.

The idea that such an invasion is China's goal is mistaken, due to it being a common saber to rattle as a distraction/negotiation tactic. More effort has been put into cutting European internet cables than setting up an invasion of Taiwan. China won't even look that way for a decade (and the world will likely be very different then).

Regardless of that (which I know will be shocking to those unfamiliar with the details of what an invasion would entail, there's reasons they haven't accomplished it in the past 70 years), such an invasion wouldn't cause WWIII as the image claims. The idea it would has always been sabre rattling, dating back to Mao and the cold war.

Just look at the outcomes, either; China has huge influence on Taiwan and operates its tech industry like a second economy (current situation), or China takes over Taiwan creating massive destruction and ill will, and the Yuan now has no surrogate currency exchange. The results would be protracted and detrimental for China.

...and that still wouldn't cause WWIII.

Only a push to non-traditional zones would (eg. An invasion of the Philippines, or Russia invading a country considered more traditionally European).

P.S Taiwan is not a resource rich area, it's smaller and closer to mainland China than Tasmania is to Australia (Tasmania is further away from Australia's mainland, and more resource rich, than Taiwan is to China). The world going to war over it is highly unlikely. What's more America would have to have its shit together to even start start a response, also highly unlikely under the current Trump administration.