I have no idea if Tomb Raider inspired Uncharted or not. Literally, no idea. Zero.
However, the concept a lot of people are advancing that it HAD to have inspired Uncharted is really confusing. Fiction is rife with treasure hunter based works. People do realize that, right? Never mind Indiana Jones and the dozens of film inspired by that (The Mummy, National Treasure, Romancing the Stone, et cetera), you could go back to The Treasure of the Sierra Madre or even The Good, The Bad, and the Ugly if you wanted. With literature, you can obviously go back even further, with Sinbad and Treasure Island being examples off the top of my head.
Actually, looking it up, I found this on Wikipedia, "The production staff drew inspiration from the pulp adventure genre when creating the video games in the Uncharted series, and based Drake on the stereotypical characters of adventure films and novels, giving him wit, resourcefulness, and strong principles," though the linked source page is gone.
It also turns out that The Lord of the Rings was a big influence and that Uncharted was originally designed to be a fantasy adventure. Interesting stuff.
Regardless, insisting that Uncharted is based on Tomb Raider seems like a huge assumption to me, given that Tomb Raider itself is hardly a defining work.
