The issue is certainly not that China wants to advance there local industries. The US has spent the last 40 years+ helping china develop its industry and technology.
The Issue is that China was obligated to develop reciprocal free trade like the rest of the WTO members. Over the last 20 years they have been moving farther away from that into a state socialist mercantilist expansionist power.
A few of the issues includes the Theft of intellectual property, Industrial espionage, Lack of market access and state monopoly domination of there internal markets. Dumping of steel and other commodities. Currency manipulation, etc.
there is a very long list.
the EU has had been putting tariffs on Chinese steel for years due to aggressive dumping of steel which has harmed EU industry and distorted prices.
I think that this confrontation has been building for a long time. and now there is a consensus, a global consensus among the liberal democracies including the EU members that China 2025 is step to far away from the normalized reciprocal free trade system.