If any man still wonders why his lady think's Danny's hot...
...take another look at From Dusk Till Dawn. That was released 17 years ago, so Danny had to be already 50 or close to it, and check out THAT BODY! Then look at Machete and see how well he's kept it.
If it weren't for all the facial scars, Danny would have been outrageously good-looking in that oh-so-appealing Native American way (yes, Mexican native people are Americans, and Danny was born and raised in L.A. anyway). He's also the all-time champ of cinema Badboys (welterweight, that is; Vin Diesel is my vote for heavyweight), and for a lot of us, Badboy=hot. Danny is what I call a Beautiful Ugly Man -- one of the highest compliments I can pay, looks being entirely a matter of taste. I like looks that have an edge with a certain fire in the eyes, and Danny Trejo is the epitome of Edge. He would be traditionally handsome without the scars, and is still beautiful when he smiles (something we so rarely get to see, sad to say).
(On my internal list of Beautiful Ugly Men there's Lee Van Cleef and a bunch of others, but the top of the list is the late, brilliant Richard Boone, the once and only Paladin (Have Gun - Will Travel). I'd lay odds that any woman who finds Danny sexy would feel the same about Dick Boone.)
I'm only in Show Biz by injection