No he didn't say they were bad, he was just agreeing with the person that said they were bad. But I think it's fair to say that the tone of the discussion implies these two people feel negativity towards the GOP's platform without stating why.

Disagreeing with someone's idea doesn't inherently make that idea bad. People who have the notion that another person's idea is bad solely because they disagree with them with no other evidence is simply a shallow person.