When the leading 5 models are from the US then yes enforced safety makes a difference because they are ahead of the curve. Now when the 10th model can be a danger then your case is true.

What would safety applied to the leading 3 mean to you anyways ?

Even if US labs are currently in the lead (which they are), in the hypothetical scenario where we're close to AGI, it wouldn't take too long (years - decades at most) for other people to catch up, especially given a lot of the researchers etc. are not originally from the US.

So the stated concern of the west coast tech bros that we're close to some misaligned AGI apocalypse would be slightly delayed, but in the grand scheme of things it would make no difference