Why do protestants don't respect the catholic beliefs and catholic people?

they always attack catholicism but they forget the new testament was selected by the Holy Spirit in the catholic councils.. if they read the history.. they will realize the church has been before their church and many other things.. but they can't catholicism because we also have the apostolic tradition and never a protestant in my life takes the time to read the tradition and to understand how the catholic church connects the Bible with the tradition why is that?