Do any of you dispute the "Pre-Clovis" theory & if so why?

I don't know enough about it to agree with it or dispute it. Since it is still an unproven theory (that was redundant,sorry) I hesitate to even speculate. I do not believe that humans evolved from monkeys,in my finite wisdom,because as even the most ignorant of us will remark....why,then,are there still monkeys/apes in existence?