Since the 'Argument from Design' was laid to rest 150 years ago or so, why do people still try to use it?

When Darwin showed that living organisms are the product of an unthinking natural process, that put paid to the Argument from Design - it is no longer possible to look at a living organism and say "it looks like it's designed, therefore there must be a designer". The funny thing is, I still see people trying to resurrect this long-discredited argument as a proof of god, and making themselves look a little foolish in the process. Why do they do this? You would think that people would look for something better, more sophisticated, less easy to debunk.