For better or for worse when most people hear a new statement or opinion coming from someone they will trust it as much as they trust the least believable thing they have heard that person say.
I think most people on this planet are able to consider each point at its face value.
Humans have a pretty strong demonstrated tendency to develop positive or negative emotional attachments to pretty much everything, including sources of information/arguments, and see the world strongly filtered through those. This is, while it can be misleading, an important evolved survival mechanism in terms of attention/resource management.
Most people probably can, by expending effort, mitigate that to a certain extent, but that doesn't negate it completely.
Perhaps this is exactly the filter I want to have.