I dispute this - the results of animal research on therapeutic benefit are massively overstated.
Most animal research doesn't have therapeutic benefit as a goal or any prospects of contributing to any therapy. Pretty much none is successful on these terms.
e.g. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1781970/
Even so, animal research as a whole is still justified and gets public funds on these terms, without any evidence of results.
Can you name one therapy, confidently, perhaps even without searching, that has clearly come out of animal testing?
[To answer my own question, the only example that I'm immediately aware of is: thalidomide.]
Why, in any other circumstance, would we want to spend a precious resource in unlimited quantity on something that is expensive, unethical, and doesn't work?