Ok if China is doing something only for China market that tells you something.

As for opencores, yes you can design them, but do any companies making commercial products sell them?

The original ARM 32 stuff is clearly out of patents and is not being copied. And it doesn't require new extensions to be commercially viable.

I recently saw it on a big European bank. The Oracle version.

An of course Oxide is still very active in developing the open source version. They develop upstream first.

What I didn't mention, in terms of propaganda, the anti-nuclear people are way ahead of any pro-nuclear propaganda. Its not even remotely close. The anti nuclear-weapons movement an environmental movement from the 1970s spread myths that are still repeated an often with emotional attachment.

My parents who lived in central Europe during Chernobyl hate nuclear power, while believing lots of nonsense that was in the news back then.

I'm not a lawyer but I would assume its copyright. Kind of like API in software. In software somehow this does not apply most of the time. But it seems in hardware this is very real. But I would appreciate a lawyer jumping in.

I know for example that Berkley when thinking pre-RISC-V that they had a deal with Intel about using x86-64 for research. But they were not able to share the designs.