Everyone has something worthy to say, even the people you don't like.
Something that I started seeing more and more on social media ( in reddit more than other social media websites) is that 2 people would argue and then a person would just state the other person political affliation and finish the discussion stating that he should be correct because of that.
The more I read the more I think that every idea should be studied as it could be correct.
True, but not everything everyone says is worthy. There are a lot of thoughtless opinions bandied about and you shouldn't assume that everything deserves to be listened to.
It's statistically near impossible for someone to be wrong about literally everything so while the people I don't respect might have views that are valid in the grand scheme of things that still doesn't mean that I have to value their opinion on it. You can be right about something accidently or for the wrong reasons. If a person has demonstrated their incapability to logical reasoning then I'm not obligated to pay attention to them in hopes that they might make sense about something.