Another point of interest (and it's probably come up already) is that, as far as my understanding goes, Sanrenmu has manufactured knives for American companies in the past (which were listed on Sanrenmu's old website, but it seems they've removed that info...) which have been sold under budget product lines such as Spyderco's Byrd knives or Benchmade's Red Class series.
If it's okay to get a Spyderco Tenacious or a Kershaw Cryo, because they carry Spyderco and Kershaw's respective names, then is it okay to get a Sanrenmu (that's probably made in the same factory) so long as it carries Sanrenmu's name? What if it happens to look like another chinese-made knife which carries an American name?
If it's okay to get a Benchmade Vex (since it carries the name of an American knife company):
Is it okay to get either of these Sanrenmu knives, which are suspiciously similar and probably made by the same people?
This is getting complicated. What if Sanrenmu knocks off its own designs? Is it morally right to buy from them?