In which case, all of that is predicating on this actually being a lab leak.
But there is no "bury head in sand" option. Eventually something as transmissible and much more lethal is going to spread. At that point, it's too late. The reason SARS-CoV-2 had a vaccine a year later is because of previous work in exactly these sorts of facilities.
BSL labs are the safest places on the planet to work on dangerous pathogens. They aren't perfect. We should continually work to make them more perfect, and fund them to be so. But they're already multiple orders of magnitude more secure biologically than the alternates.
Any country on the planet can work with any dangerous pathogens they can get ahold of. In any way they want. You can only set standards, contribute foreign aid to fund improvement, and try to improve the safety level of the global community.
The "lab leak possibility means we shouldn't do lab research" argument feels like the suggestion that after Nagasaki the world should have abandoned nuclear weapons and ceased research.
In which case, we'd be living under the flag of whichever country ignored that and pursued it anyway.
They get to choose.
So you end up with the CDC in Atlanta or Ft. Detrick 50 miles away from Washington, DC. If you said "We're only going to do BSL-4 work at Enewetak," then a lot of work simply wouldn't get done, either because of logistical challenges or because no one wants to relocate there.
And on a personal note, as someone who's lived < 5 miles away from a BSL-4 lab, I slept like a baby. I knew that if the worst happened, from the environment outside the lab or the lab itself, the nearest ICU and associated institutions were staffed by some of the best infectious disease experts on the planet.
Covid was a warning. But scientists are going to ignore that and the science? And we're going to make excuses for that?
What could go wrong?