The theory of macro-evolution posits a series of jumps in capabilities between less developed common ancestors and the later more complex forms that followed them
Dude... there is no "theory of macro-evolution".
I'm sure this has been pointed out to you ad nauseum. There is just the "theory of evolution".
Micro/macro is just about timescales and and arbitrary amount of accumulated genetic changes. They are not different evolutionary processes. The exact same evolutionary mechanism underpins both, because they are the
exact same thing, with as only difference, thus, amount of generations and amount of accumulated genetic changes.
So fish like beings become ape like beings become human beings would be the historical path. The difference between the ape like ancestors we are supposed to be descended from and modern humans is profound and includes the development of language, tool making capabilities and a capacity for abstract thought missing in the previous generations.
The "previous generations", being
millions of years ago.
It's not like a primate not capable of abstract thought and tool making suddenly gave birth to a primate with double brain size that could........
The comparison with x men is therefore warranted
No, it's not.
as we are qualitatively that much superior to our supposed ancestors as xmen/heroes/alphas (whichever TV series you watch that share this assumption) would be to us.
No, we aren't.
And let's not forget that in the
movie, "normal" parents gave birth to "mutated x-men".
Whereas in the real world, no non-human primate ever gave birth to a homo sapiens.
It took millions of years of small incremental genetic changes. Thousands upon thousands upon thousands of generations, in populations of millions of individuals, each adding their own set of mutations and being subject to the "test of life".
It does not happen overnight.