[Stepfathers] love 'em or hate 'em?

Today’s rant, and my first topic, is about something as simple as stepfathers.
They walk into our lives with a smile on their faces, good intentions, and hopeful hearts. The question is, is this just a show? Or do they really mean it?
They do the job your biological father was never fit to do, but it doesn’t necessarily mean they do a great job, honestly, some people just aren’t meant to be parents.

I only raise this topic due to recent events involving my own stepfather.
Yesterday was my 17th birthday and much to my demise I can say that I only saw “dad” 2 minutes the entire day.
It’s like, woah dude, it’s your /daughters/ birthday, care to spend some time with her? Nope, not having any of that shit. He insisted he go out sailing for the day, then stay out till the late hours of the night, and when he eventually comes home it’s stumbling through the back door, completely and utterly DRUNK.
Shot dad, SHOT.