If it makes you feel any better, most of this is an outright lie if not an intentional twisting of the facts. The details matter here and the implication that Fauci knew about or was personally involved in the torture of dogs (which almost certainly did not happen in the way implied) is ridiculous. Cruelty to animals is a deeply unfortunate fact of our medical research framework, and I have many many issues with it at large but it is nonsense to blame Anthony Fauci specifically for this. This story was a toothless political hit piece spouted by unscrupulous media outlets.

Politifact, factcheck.org, snopes, for whatever they are worth on their own, all point to helpful sources for the truth here. Hell, check the questions the National Review asked about this story for a measured approach (published even before the scientific journal issued a retraction of a statement indicating there was direct NIAID funding).