Theory Regarding Kale and Vegeta

While we now know that Kale's transformation is or looks exactly like LSSJ, we don't know how other characters will react to this. Goku will most likely just be excited to fight a strong opponent, but what if Vegeta reacts to the form in the same way he reacted to Broly?

What if Vegeta loses all hope, recognizes the form as the Legendary Super Saiyan and just gives up? This could lead to his eventual ring-out or provide him the motivation to rise up and defeat Kale, himself.