It was split in two.
1. Calling it "the china virus", as the former president was wont to do, was labelled racist/bigoted/nationalistic by those who did not simply agree with anything he said.
2. The claim that it originated in the Wuhan lab was viewed as unlikely, and there was (is) an alternative biological origin story which at the time seemed credible and more likely.
> "The pandemic is conventionally marked as having begun on 4 March 1918 with the recording of the case of Albert Gitchell, an army cook at Camp Funston in Kansas, United States"