This is a variant of ad hominem attack. He must be "motivated" to disagree with you. It's "reflexive." Maybe he just disagrees. If you didn't present "the best

This is a variant of ad hominem attack. He must be "motivated" to disagree with you. It's "reflexive." Maybe he just disagrees. If you didn't present "the best nor even a representative" link, why don't you contribute to the debate and present it?