“enjoy sympathizing with your Muslim brothers”
Blessing misguided Muslims in hope that they find God’s Truth is not a bad thing.
Muslims are no less deserving of prayer and blessings than those Protestants that have been deceived by fanatics such as Calvin etc.
I would say scripture has something different to say on that subject.
“But though we, or an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed. As we said before, so say I now again, If any man preach any other gospel unto you than that ye have received, let him be accursed.” Galatians 1:8-9