I admire your work and am not trying to diminish its impact. It would take time but I think both projects (and Safari if they were amenable to the idea) and their combined millions of users would benefit from getting your collective compiler/VM/JIT-expert heads together.
So, sorry Rusty, but I am going to have to call you naive. Competition is good. It’s what drives innovation whether you are talking about commercial or open source software development. Software monocultures stifle innovation, even when they are open source based.