"They" can get these almost unlimited monies basically for free from the Chinese banking system while similar funding in the US and Europe ends up with so called investment banking or similar where it will never arrive with new entrants or is allotted to a small group of established players and special interest groups.

China is acting similar to what successful (new) raising economies have been doing in the past when they disrupted established (industry) players - my best historic comparison on this would be the transition of Germany from a farm based economy to one of the key industrial nations after the first industrial revolution. While the leading industrial player - the UK - was blocked from progress by overstretched copyright / patent / other protection mechanism of the established special interest groups, Germany provided top down support and access to all necessary means to forward technological progress.

Then - while most people in Germany still gained only limited benefits and just a few became very influential / rich, Germany as an overall entity / nation gained massively. At the same time the situation / influence of the UK overall deteriorated - these are of course all longer term developments often spanning more than one generation (30 years).