You're absolutely right we all make judgements based on our person bias.  That would include your own specific interpretation of the bible which apparently requires you be a Protestant.  

Let's see, I was baptized Catholic, moved to Episcopalian at the same time as I attended a Luthern school.  My first love was Quaker and I attended William Penn College.  I was married by a Baptist minister we had just met(he liked fishing and was well loved by friend of ours), attended some Baptist services, my current wife was in Second Reformed church, I was at Third Reformed Church so I was steeped in Calvinist teaching.    None of this experience exposed me to the solae, so you must keep elite intellectual company that enjoys church theology. 

Theology is not the only way to experience agape' love.


https://en.wikipedia.org/wiki/Five_solae   

Not articulated until the 19th century, pretty johnny come lately isn't it?