In the year 2024, if you still believe that the white European people are the Hebrews who returned home to Palestine would mean that you suffer from immense delusion. There is absolutely no reason to believe today that the white Ashkenazi people are the Hebrews after DNA confirmed that they are actually 100% European and DNA is never wrong.
A delusion is a fixed, false belief in something that is not real or does not exist, and is held despite evidence to the contrary.
A delusion is an unshakable belief in something that is untrue. The belief isn’t a part of the person’s culture or subculture, and almost everyone else knows this belief to be false.