Learn your history. Everyone does it. Europeans and Americans did it. Now the Chinese are doing. The only reason we're bitching is because now we're the targets instead of the thieves.
Everyone is standing on the shoulders of someone else.
https://en.wikipedia.org/wiki/Smuggling_of_silkworm_eggs_int...
https://www.atlasobscura.com/articles/porcelain-corporate-es...
Harris, John (1998). Industrial Espionage and Technology Transfer: Britain and France in the Eighteenth Century. Aldershot: Ashgate Publishing Limited. p. 680. ISBN 0-7546-0367-9.
https://www.smithsonianmag.com/smart-news/how-industrial-esp...
https://theintercept.com/2014/09/05/us-governments-plans-use...
https://www.the-american-interest.com/2014/12/10/the-new-ind...
https://searchinginhistory.blogspot.com/2015/02/francis-cabo...
https://www.pri.org/stories/2014-02-18/us-complains-other-na...
https://www.hsdl.org/?view&did=3729
The fact that we don't hear much about our own examples of stealing other civilization's secrets is just a matter of the fact that we are now ahead. If the tables were turned just like they were in the past, we'd go right back to stealing other people's tech. To say that other people shouldn't do things that we have and would do makes little sense. That isn't to say that we shouldn't protect ourselves, it's just to say that people need to stop the damn moralizing as if we were any better.