Like me, you probably viewed it as a deliberate attempt to distract from his administration's incompetence. Like me, you probably decided right then and there that it was a natural virus and recognized that a bulk of the people saying otherwise just HAPPENED to be people who wanted Trump re-elected.
There comes a point where you have to recognize that you have made decisions with incomplete information and emotional biases, and that those decisions sometimes need to be completely cast out, with an objective, reasoned look at the latest facts.
At this point, the evidence that you reasonably state needs to be found has long been eradicated by the second most powerful nation state the world has ever seen. An authoritarian one, with the ability to make any critic disappear. There will never be an actual smoking gun, because the CCP had months of knowledge of what they had accidentally released before the rest of the planet knew it existed. All of the evidence was within their borders. The eradication of this evidence is itself an incredibly strong indication of guilt, particularly combined with the mountains of circumstantial evidence that point to this being a lab leak. If a detective walks into a suspected murderers bedroom, and finds that all of the surfaces have been bleached and the carpet has been ripped up, he doesn't have definitive evidence that the suspect is a murderer. But he does have evidence that they are trying to hide something.