No one said that, what was repeatedly said is that if you go to trial, these factors can have an impact.
Being ridiculous is to continue to miss that point, repeatedly. It is also ridiculous to insist that juries are not influenced by such factors when the experience of lawyers, written up in their texts plus seen in trial presentations, and legal/behaviorial research also demonstrates the effects.
If you manage not to go to trial, good for you. If you do, good for you if your lawyer thinks such are ridiculous. Have a nice time.