Vintage is gay and gay people are wrong, sinful people because Sky said so.
Sky is dark-skinned so he can't be trusted, but he's also gay so there's this double-negative effect where in the end he's actually right and gay people are actually bad people because homosexuality is a sin.
But homosexuality is a sin because the Bible said so, but...the bible is dark-skinned (usually black) as well so it can't be trusted.
Therefore homosexuality is not a sin and Sky is only not-trustworthy because he's dark skinned, which means Vintage is right because homosexuality is no longer a sin. And since Vintage says my opinion can't be trusted, and he's right because he's gay, that means I'm wrong.
However, if being gay makes you right, and heterosexuality is the opposite of being gay, then logically speaking, being straight makes you wrong.
Thus, since I am both straight and dark-skinned, there is a double-negative effect which means I was right all along, and the claim that Venusaur > Wartortle remains true.
Checkmate.