AFAIK DeepSeek was released with the MIT license so anybody anywhere can freely use it for any purposes even commercially. It being open is the key. You don't need to pirate it. It is literally free.
It's not about China vs USA as the media portrays it. It's opensource vs closed source. Community vs corporations. If these guys were in USA, it would be the same deal. Big corporations making it seem they are doing a big thing and sucking all the money while doing nothing. It's not a new thing.
Well, and yet, not everything is truly Open Source in DeepSeek AFAIK. Deepseek offers some different models, R1 and V3 in addition to an image generator of name Janus Pro. But the technique, the deep core, all the bells and whistles and the exact source code that they used to train the models is not publicly available nor open source. So, USA or whatever country, would still have to copy, hack and reverse engineer that know-how of the chinese that is not into the MIT license.