I have a question. Have humans changed their evolutionary history via their intellect?
If that's true, it's nothing new. Fish have used their superior inteligence over other sea anaimals to change their evolutionary "history" (by which I presume you mean future) for hundreds of millions of years.
Over time, individuals that may be susceptible to certain mutations that are deadly, such as cancer, die out leaving a specie which is stronger and less prone to said mutation. We, as humans, have decided that even the weakest among us can be saved and are actively fighting to eradicate these mutations.
It's a fair argument to say we have used our technological abilities to change our environment to a degree where our evolutionary future may be altered. ?That's a standard feedback mechanism.
Conversely, mutations that may eventually strengthen our specie are also fought against.
I would distinguish between "fought against" and "given no preference".
Humans are the first specie on the planet to be able to change the course of their evolution. Ultimately this may lead to the downfall of the specie.
99.9% of species die out. I like our odds better if we try to shape our own destiny.