What version of the argument do you agree with?
Another point I agree with JP is that just because someone doesn't have a good argument or well formulate reason, doesn't mean they're wrong.
It means that they aren't a great speaker and probably shoud think more about why they belive the things they do. They also won't be convincing anyone of their views anytime soon, but it doesn't mean that they are wrong.
Imagine someone saying slavery is wrong, but being unable to explain why.