Many of the believers in IE have been and continue to be Christians. To say that it is anti-christian is not right, although non-christians from Europe have used it as such well.
The reason that IE still fits in with Christianity is because of Replacement Theology: Christians believe their religion is valid in spite of serious doctrinal differences with the Old Testament (Judaism), because they think they have the New Covenant with gawd: the New Testament. They believe that their religion has effectively replaced Judaism, which is why they didn't and don't understand why Jews don't convert and why they have always thought it okay to genocide the Jews whose existence and standing vis-a-vis the biblical god the supposed NT has nullified anyway.
Replacement Theology was also the natural outcome of their self-created envy about Jews being the Chosen People of the biblical deity. Their new covenant also allowed them to break the commandments set by their gawd in the OT (circumcision, and upholding the laws of the Judaic deity) and allowed anyone to convert without having to become Jewish themselves. The early Jewish followers of a Jesus (Ebionites, wrongly called Jewish 'Christians') who still exist, insist on circumcision and following their God's laws. They've also always been a thorn in the side of Christianity because their existence during the early centuries of Christianity (and today) also keep disproving this fraud of a religion.
Belief in IE does not negate the belief of that 'universal' religion christianity: anyone of any background can become christian, and it allows the upper hand in religion to christians over anything Jews might have. Look at how WASPYs believe the US is the Promised Land and they are now the Chosen People because they hold to the imaginary new covenant. Many neonazi movements, in the US at least, are actually completely christian movements. A documentary on them showed some WASPy children make a chalk-drawing of the hakenkreuz (the famous nazi symbol) and dance around it singing some lame songs to jeebus creepus.
The devoutly christian and racist KKK also believes their White racial group is god's gift to humanity. That was even before their acceptance of IE, but IE now fits in well with their views.
The reason that IE still fits in with Christianity is because of Replacement Theology: Christians believe their religion is valid in spite of serious doctrinal differences with the Old Testament (Judaism), because they think they have the New Covenant with gawd: the New Testament. They believe that their religion has effectively replaced Judaism, which is why they didn't and don't understand why Jews don't convert and why they have always thought it okay to genocide the Jews whose existence and standing vis-a-vis the biblical god the supposed NT has nullified anyway.
Replacement Theology was also the natural outcome of their self-created envy about Jews being the Chosen People of the biblical deity. Their new covenant also allowed them to break the commandments set by their gawd in the OT (circumcision, and upholding the laws of the Judaic deity) and allowed anyone to convert without having to become Jewish themselves. The early Jewish followers of a Jesus (Ebionites, wrongly called Jewish 'Christians') who still exist, insist on circumcision and following their God's laws. They've also always been a thorn in the side of Christianity because their existence during the early centuries of Christianity (and today) also keep disproving this fraud of a religion.
Belief in IE does not negate the belief of that 'universal' religion christianity: anyone of any background can become christian, and it allows the upper hand in religion to christians over anything Jews might have. Look at how WASPYs believe the US is the Promised Land and they are now the Chosen People because they hold to the imaginary new covenant. Many neonazi movements, in the US at least, are actually completely christian movements. A documentary on them showed some WASPy children make a chalk-drawing of the hakenkreuz (the famous nazi symbol) and dance around it singing some lame songs to jeebus creepus.
The devoutly christian and racist KKK also believes their White racial group is god's gift to humanity. That was even before their acceptance of IE, but IE now fits in well with their views.