That is an interesting question, isn't it? To me it seems like...

That is an interesting question, isn't it? To me it seems like defense lawyer tactics: avoid all mention of a body of evidence, pick on the one piece that seems weakest or easiest to obfuscate, and try to convince the jury that if that one piece falls the whole case does ("if the glove don't fit, you must acquit"). Given that your average person doesn't deal well with complexity* it's surprisingly effective.

* You see this in the many "it's the sun, stupid!" posters here. Many people seem constitutionally unable to deal with multifactorial problems. To them everything must be the product of a single cause. They simply can't handle the subtlety of a situation like the climate which has multiple "control knobs", each of which can be independently tweaked.