Surely there is all the difference in the world between refusing to engage with despicable opinions and refusing to accept verifiable fact. Using recent events as a template, we can accept or reject the various explanations for why the conservative candidate won the teeside mayor election as our consciences dictate. What is unarguable fact is that the conservative candidate won. I despise Nigel Farage but if he had presented that fact then, like it or not (and subject to fact checking) I would have to accept it.
The frog thing appears to be peer reviewed accepted science. The fact that someone with despicable opinions is weaponising that doesn’t change the science. You can dismiss the conclusions all you like but the science underpinning it remains unless and until disproven by further research of equal or greater academic rigour and peer reviewed to an equal or greater extent.
The fact that it’s boris Johnson who tells you the sun is shining doesn’t mean, without more, that you can conclude that it’s raining. You’d be well advised to check for yourself, but facts are facts.