Arminianism is antichrist
This seems harsh, but it is undeniably the truth.
1 John 2
22 Who is a liar but he that denieth that Jesus is the Christ? He is antichrist, that denieth the Father and the Son.
The characteristic of the antichrist is that he denies the Father and the Son. This is what Arminianism does.
In John 11, our Lord asked Matha:
25 Jesus said unto her, I am the resurrection, and the life: he that believeth in me, though he were dead, yet shall he live:
26 and whosoever liveth and believeth in me shall never die. Believest thou this?
Note her reply:
27 She saith unto him, Yea, Lord: I believe that thou art the Christ, the Son of God, which should come into the world.
Martha identifies the title 'Son of God' with what our Lord just affirmed about Himself. If one denies this truth, then one has denied the Son.
The Arminians do not believe that Jesus is the resurrection and the life. They believe that a person can believe and yet go to hell. They do not affirm that 'he that liveth and believeth shall never die.'
They also deny the Father. For our Lord also said in John 3:
16 ¶ For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.
This reveals the saving purpose of the Father. He sent His Son into the world that whoever believes on Him might have eternal life. But the Arminian does not accept this. The Arminian holds that although God sent His Son into the world, not all who believe on Him will escape hell. They deny that whoever believes on the Son has everlasting life.
Therefore I am not afraid to say that Arminianism or Wesleyanism is antichrist.