That’s because we have a Trinitarian view of prayer. We pray to the Father (as Jesus did), through the Son because it is in his name that we can boldly come before the throne of grace, in the power of the Holy Spirit because it is the Spirit that empowers us to know and do the will of the Father.
Of course, evangelicals do use Trinitarian formulas, such as when we baptize in the Name of the Father, Son, and Holy Spirit.
Most European monarchs were Catholics prior to the Reformation and they murdered and stole all the time, and the Popes loved rewarding them with titles such as “Most Christian Majesty” etc. So, the behavior of Christian monarchs is pretty much horrible across the board, Catholic or Protestant.
If we were to judge a religion by all the scandalous behavior that crops up from time to time, remember that Catholicism’s history is just as colorful.
My mind is blown away that any person could believe that Christ rose from the dead.