Canada

Check what percentage of a typical vehicle cost comes from labour. Then from that, check the manufacturing wages in different locations and scale the labour cost by that. That’s will give you the ballpark labour cost advantage between. Then compare that with equivalent vehicle prices.

Great. Can you please give me reliable numbers so that we can 'check' them?

The point is that China's supply chain is a black box, and they have been opposing any form of transparency for years.

On the other hand, there is reliable information of forced labour (not exclusively, but foremost in China's northwestern Xinjiang region, if we speak of cars). So your comment is a distraction.

We must clearly say it: There is massive slave-like labour in Chinese supply chains - within China as well as abroad.

To provide an example:

[In Brazil], in the same month that Chinese BYD’s car carrier arrived in the country, Brazilian prosecutors announced plans to sue BYD and two of its contractors for ‘slave like conditions’ at a factory site. A task force led by Brazilian prosecutors said it rescued 163 Chinese nationals working in “slavery-like” conditions at a construction site [...] where Chinese electric vehicle company BYD is building a factory.

The [Brazilian] Labor Prosecutor’s Office released videos of the dorms where the [Chinese] construction workers were staying, which showed beds with no mattresses and rooms without any places for the workers to store their personal belongings.

Officials said [BYD contractor] Jinjiang [...] had confiscated the workers’ passports and held 60% of their wages. Those who quit would be forced to pay the company for their airfare from China, and for their return ticket, the statement said.

Prosecutors said the sanitary situation at BYD’s site in Camaçari was especially critical, with only one toilet for every 31 workers, forcing them to wake up at 4 a.m. to line up and get ready to leave for work at 5:30 a.m.