Why wouldn't I? Your argument appears to boil down to "well not caring about blind users is the status quo, so no reason to change it". I can guarantee you there were similar attitudes among construction workers and architects before wheelchair ramps became mandatory in various jurisdictions (and hell, even after): "well the vast majority of people wanting to enter this building have working legs, so why should I be assed to build a ramp when a staircase will do?".
If you can't be assed to write software that's accessible to blind people, then that is - by definition - discrimination against them. It's not even hard to make a web page reasonably accessible; plain HTML (with or without CSS) is typically perfectly usable with a screen reader, and it's only when that gets mucked up by a tangled mess of DOM-mangling JS (or Flash or Java or Silverlight once upon a time) that anyone needs to actually put any significant effort into accessibility.
Why wouldn't I? Your argument appears to boil down to "well not caring about blind users is the status quo, so no reason to change it". I can guarantee you there were similar attitudes among construction workers and architects before wheelchair ramps became mandatory in various jurisdictions (and hell, even after): "well the vast majority of people wanting to enter this building have working legs, so why should I be assed to build a ramp when a staircase will do?".
If you can't be assed to write software that's accessible to blind people, then that is - by definition - discrimination against them. It's not even hard to make a web page reasonably accessible; plain HTML (with or without CSS) is typically perfectly usable with a screen reader, and it's only when that gets mucked up by a tangled mess of DOM-mangling JS (or Flash or Java or Silverlight once upon a time) that anyone needs to actually put any significant effort into accessibility.