Executive Director of the Creation Studies Institute (an outreach of Coral Ridge Ministries), author of “Evolution’s Fatal Fruit” and self-proclaimed loon (well, he hasn’t literally said that, but he explains the fact that the earth is 4.7 billion years old and that this contradicts the Biblical 6000 years away by claiming that God created a 4.7 billion year old earth 6000 years ago, and that pretty much amounts to the same thing). His institute’s website is worth a visit.
Yes, he is a young earth creationist, trotting out the same old, same old – radiometric dating is unreliable, the Flood occurred 4000 years ago, Tyrannosaurus Rex was really a firebreathing dragon (behemoth of the old testament), evolution is solely responsible for all the ills of the 20th century (including, it seems, the travesties of religious fundamentalism – it is a little unclear). And these pieces of untarnished lunacy are typical creationist talking-points, remember. A typical debate is summed up here.
His notability does in part also stem from his own claim that he used to be an atheist who has since seen the light (See here. See also, well, more or less the rest of them, for example this guy). Apparently, DeRosa was the one who lead Pat Boone to creationism – I mean, Boone used to be an atheist, didn’t he? Apparently, Tom has a blog as well, where you can read about (among other things) his profound insight that creation vs. evolution is really the war between worldviews and neither is better than the other (yet his is, somehow, the best and correct one anyway).
Diagnosis: Total moron; impact is uncertain but he shouldn’t be underestimated.