A **LOT** more important than mastering all the details and expressions of doctrinal minutiæ is obedience to the obvious commands of Scripture that are mostly neglected in modern American Reformedigelicalism - establishing righteousness, crying out against injustice, calling people to obedience, repentance, and faith in the Lord Jesus.
I hear "that's not my calling" ALL THE TIME, but what people mean is that they prefer to debate deep philosophical ideas from their couch on social media rather than actually put themselves at risk of reproach and injury from lost people by going to where the lost people are to call them out of darkness to light. So in essence they blame God for "calling" them to doing easy things rather than doing hard things for His kingdom. It's God's fault. Don't blame the individuals for simply disobeying!
For that reason I have a lot more in common with someone who professes Arminian soteriology AND OBEYS GOD than I have with a Calvinist who makes excuses and spends all his time reading books and attending conferences to hear yet more theology lectures as long as he can go to Chili's afterward to discuss theology even more.