Which brand of Protestant?
Any and all Protestants. I imagine one can find a sect that rejects the doctrine that all traditions, teachings etc. must square with the bible as God’s word; if so, I’m not aware of them. Tradition, history, philosophy, theology etc. are not God’s direct word, but the interpretations of men. If they square with scripture fine, if not, too bad. The doctrine is not a matter of debate, discussion different points of view, in short, an axiom.
Doesn’t matter which one...
The Unity most Protestants have is in the person of Jesus Christ...
The Catholic denomination ‘centers’ on their church ‘membership’, ‘rites’, ‘icons’ and the leadership their ‘pope’....with ‘Mary’ thrown in as close to upsurping Christ Himself.... there are also many branches within the catholic denomination just as with Protestants.