You're not actually refuting any argument the parent made.

First, pointing out that other pandemics have happened absent lab accidents doesn't negate all the evidence pointing in that direction this time. As far as evidence and probability goes (with regard to the potential evolutionary paths the virus would have had to have taken in the wild), the lab leak hypothesis is very strong. The simplest answer is that it leaked from the lab a few miles away studying this exact family of viruses.

Second, the parent wasn't saying anything about whether or not Trump was twisting the truth or being dramatic. His whole point is that the discussion was able to be hijacked by the simple act of a divisive figure talking about it. It's fine if people dismiss Trump (the smart thing to do honestly), but allowing that to bias you in the opposite direction without any evidence is making the exact same mistake he did.