WebToMed Front End Developer interview questions

I went through a phone and in-person interview and super-simple coding exercise. The interviewer was disinterested to the point of being rude, and despite over-fulfilling the real requirements of the position, they failed to get back to me within the date they promised and haven't returned my call or email following up. I've seen them floating ads for this position for over a month now; it's no surprise to me that they can't fill it.

There are three steps. 1 phone interview : HR was really nice 2 online test : 1 hour which was super easy. 3 was the one that sucked. It was with the "founder". He came like 7 mins late. Said he was sorry but didn't sound a bit sorry. Didn't even hold eye contact. It felt like he hated being there. Hand shake with him was like shaking hands with a stuffed inanimate stuff toy. I also peeked around the office and although they say they are "equal" employer...99% of the employees were white and I am not white. All this time I was 100% sure that I was wasting my time but I decided to be polite. Next time I get crappy interview experience, I am just gonna walk out.