What would be the most scientific term to describe mental gymnastics? It's essentially making series of ridiculous conjectures to make it impossible to prove any emotionally-harmful statement of concrete reality that is easily observable as long as you have an open mind and a decent amount of exposure to a large variety of people.

For example, anybody who hasn't lived in a protective bubble will know that certain races of people are less intelligent and more prone to exhibiting violent behavior. You do not need science to observe these patterns through daily life, but there exist plenty of science and statistics to prove it. It's as if leftists want you to give impossibly detailed proofs to make the statement that certain races are inherently different on a genetic level.