My man, consumption share of GDP is not everything. Its one thing to have a for example 60% share of a gdp of 1 trillion and another to have 40% share of a gdp for 15 trillion
Percentages themselves are not the only figure that matter. As the economy grows then it is more difficult to change and retain a 60% consumption share without very drastic reforms. And consumption is not everything, manufacturing also plays a significant part
This is a complex matter and it doesn't help when you are comparing figures between now and 2000 when China's economy was tiny. You might as well talk about different countries in this case
In China's case, which is an upper middle income country, it is indeed everything actually. Household consumption is basically a proxy for household income be it through direct wages or government social services/welfare. There is a reason why boosting household consumption is at the top of the latest Five Year plan.
No country ever, aside from the OPEC oil kingdoms and other oil nations, have broken through the middle income trap without re-balancing to above 50% consumption share of GDP. The implicit reasoning for this has been discussed ad nauseam in developmental economics, namely that without higher wages/government transfers to household incomes, you cannot actually provide the incentives for domestic human capital to develop further so that they can actually occupy the higher tiers of the global value/supply chain.
You are right that it is complex. You are wrong however, that it is not everything. It is indeed pretty much everything for this Five Year Plan, which you should read.