No, some "Christians" may be sorry THEY didn't get to enter into the Kingdom of God.
By God’s own word, a Christian is a believer in his Teachings...if you believe in Him you Enter the Kingdom!
I’ll see you there!... along with all the other lost, confused, misguided Christians, that know his word and Believe in Him and Know him in their heart!
Blessing too you Red Badger, my Brother...at the Gate all may enter that recognize Jesus...even a Jew that followed the Laws will enter, because God will reveal Himself to all believers and we will have a Choice...