A "one point" calvinist is an arminian deceiving himself.

Not sure what "one" point can be held while rejecting the other "four". Lots of good discussion on that forum if interested. Here is a simple thumbnail (NOT meant for discussion here) in lay terms about my salvation:
Role of man in salvation = nothing, no ability to do/think/will any righteous thing
Role of the Father in salvation = select from incapable, fallen, hell-bound man a bride for His Son
Role of the Son in salvation = fully atone for the sins of those selected (while having general benefit on all creation)
Role of the Spirit in salvation = work unseen, giving repentance and faith to those selected and atoned for
Role of the triune godhead = preserve and keep those selected for eternity