For me, despite 43 years of indoctrination in atheistic materialism and Darwinian orthodoxy, it was a very simple logical exercise to conclude that living systems are the product of intelligent design.
The simplest living cell includes highly sophisticated, functionally integrated information-processing machinery, with error-detection-and-repair algorithms and their implementation.
The notion that random errors, whether filtered by natural selection or not, can produce such technology, is a transparently absurd proposition.
It’s really just that simple.
The great Arthur Eddington once said that, philosophically, the notion of an abrupt beginning to the present order of nature was repugnant (referring to the Big Bang). It might have been philosophically repugnant, but it was true.
Only those who find the notion that living systems are designed to be philosophically repugnant can deny the evidence.
I also found the evidence to be philosophically repugnant, but I considered the denial of obvious truth to be even more philosophically repugnant, so I changed my philosophy.