This is not my field. I would have to go searching websites for information (somewhat like you have done) and would not be able, from my own knowledge, to answer any tough questions that were asked in return.
As a scientist, I try to avoid such situations. I try to stick to those fields in which I actually know something.
A good attitude.
And for those of us outside of biology, any acceptance or rejection of common descent is necessarily based on faith. We outsiders must choose who and what to believe, or choose to remain in doubt.
Now obviously the evidence and research are readily available to those who devote themselves to it. For myself, I'm willing to delve into the subject just long enough to get the "big picture" of the case for common descent, but I keep finding what I thought I knew was not as simple as I thought.