What are you talking about? The Wuhan Institute of Virology is firmly located on sovereign Chinese territory. In fact, the main reason why any serious scientist should still give the lab leak theory the time of day is due to the fact that China was so cagey with what was going on at the WIV. If this lab was multi-governmental we would have the data China withheld and the lab leak theory wouldn't have any shadow to lie in.
Furthermore, the real problem with the lab leak theory is that it does not matter whether or not it is true. If COVID-19 originated from animal sources, then we should regulate wet markets, crack down on the endangered animal trade, and stop doing gain-of-function research. If COVID-19 originated from a lab, then we should stop doing gain-of-function research, regulate wet markets, and crack down on the endangered animal trade. All of those things are very prudent things to do if you want to slow down the introduction of novel pathogens.