From the first paragraph in your link,
italicised:
"Macroevolution1 is the belief that all extant species emerged from previous species, beginning with a simple, single-celled organism."
Delete the word simple. There is nothing simple about current single-celled organisms. Believing that there is goes someway to explain why some people imagine the step to multi-cellularity is a step too far.
"Macroevolution is accepted as true by the bulk of mainstream scientists, even though, without a God, it does not even have the means to get started on its path from single-celled organisms to humans."
That is an assertion offered without support. Single celled organisms have the ability to reproduce, the ability to evolve, the ability to exchange genes with other single celled organisms, and always the compulsion to be selected by the environment on the basis of their fitness. There are single celled organisms around today that, under appropriate circumstances combine with other single cells and behave as a single entity. And we can find thousands of steps that show the transition towards more advanced forms, such as salmon, giraffes, oak trees, brachiopods and humans.
"No sufficient evidence exists to support the blind belief that life could come from non-life, much less life that is equipped with an operating program, genetic information, and the ability to reproduce itself."
The theory of evolution is wholly independent of the origin of life, so the above sentence is irrelevant.