Nonsense.
Every piece of evidence we have, without exception, suggests that every species we see today descended from previous species and those from earlier species, genera, families, orders, etc.
Of course you are free to close your eyes and proclaim: "I see nothing", if that's your choice.
Nevertheless, the evidence remains.
Variation within species is one thing.
Evolution is another entirely.
Taking observed variation within species and extrapolating evolution out of it is presumptuous at best and not supported by actual evidence.
To make it easy, just focus on the human being. Show me any evidence anywhere that a change in the normal number of chromosomes in a human being has ever had either a positive or neutral effect instead of being deleterious.
Nonsense.
Every piece of evidence we have, without exception, suggests that every species we see today WAS CREATED BY THE AUTHOR OF LIFE and THEREFORE earlier species, genera, families, orders, etc. CONTAIN SIMILAR BUILDING BLOCKS.
Of course you are free to close your eyes and proclaim: “I see nothing”, if that’s your choice.
Nevertheless, the evidence remains.
Funny how that works both ways.