A person who preaches hatred, prejudice or violence against other people due to their religion is acting against Christ.
Christ Himself told Saul (Paul) in the road to Damascus that he was acting against Christ.
So, in that sense, Luther’s attitude was anti-Christ.
Just let me insist that we all show anti-Christ attitudes at some point of our life, as a result of our
ignorance.
Even Paul did it… and not just at the beginning against Christians… He supported a commonly held prejudice against people from Crete (Titus 1:12,13)
One of them, a prophet of their own, said, “The Cretans are always liars, evil beasts, and idle gluttons!” This witness is true.
Now replace Cretans by “Mexicans” and Paul will sound more prejudiced than Trump!