The appeal is that it's the truth. People want to discover the truth about how our world works and how we came to exist in it, and science is how we do that -- and every bit of science we have indicates that evolution is the only plausible explanation for the current diversity of life on Earth.
you're pushing the idea that life has no true purpose and random death means progress
No, we're not, and I think the whole "you can't have meaning without religion!" bit is one of the most insidious lies the Christian church has pushed. Not following the dogma laid out in 2000-year-old books means you can make your own purpose in life. You can decide what gives you meaning and what you consider progress. I promise that if you go to any Humanist gathering, you will see plenty of people who have meaning and purpose without religion. Talk to them a bit, even -- I'll bet they'll be perfectly friendly if you say, "Hey, I'm a Christian but wanted to see what you guys are all about." Learning first-hand what life without religion is like is better than taking your pastor's word for it (after all, do you think maybe he has his own agenda?).
I'd rather bet on a
Here's the thing, though: there's not a 0.001% chance of that, there's a 0% chance of it. There is zero evidence than any sort of supernatural being exists at all, and it's a huge leap from there to "Christianity is true," with just as much evidence. You are believing it purely because it makes you feel good. That's your choice, but maybe you should find out what the alternative is actually like before dismissing it.