This is an earnest question, not a blind "I don't care". I think this is interesting, and I can see some amount of merit in these claims, but at the end of the day it doesn't feel like it matters to me which one it was. It seems like the only change would be "China gets more bad PR" and maybe American racists use this as an excuse to be more racist.
If we can establish that a lab leak lead to a worldwide pandemic, we'd place much more importance on lab security and better handling procedures.
If it was naturally spread then we'd look at the feasibility of reducing the chances of this happening again, like improving sanitation of wet markets, implementing regulations, or even banning them entirely.
Frankly the notion of it not mattering to someone how covid came to be is absurd.
If you don't want something to happen again, you first need to understand the circumstances that lead to it.