Leaving aside the fact that an omniscient God would know what decision Mary's freewill would produce, is your point is that the Holy Spirit is a rapist? Can you explain how that squares with Mark 3:29?
Now, that's just silly.
God wouldn't have waited until someone chose to accept his Son into her womb.
He knew who He would choose well before Mary had an inkling of what was going on. The angel told her what God was going to do and she believed the miracle would occur.
That's not "rape".