I think my only issue concerning the matter is when someone who does have the skills required and still isn't able to get a job because the one skill they lack is speaking another language. Regardless of degree level, past work experience, or job titles. It's honestly quite frustrating when the reason given for turning the same person down is because they're "overqualified."
I think it's also a bit troubling when an obvious bias shows through in who gets a job and who doesn't. I understand that immigrants have built up the US (my own ancestors included though I'll never really know till i can invest in the research) but it's troublesome to think of how pick and choosy employers are becoming not because skill set but solely on demographics. I respect that the choice is their as the employer and they're looking to find the ideal fit for the position their hiring for but at the same time why not train a person who may lack a teachable skill.
I only managed to stay in my retail job for a little under two years and why my spanish wasn't fluent I was lucky to have coworkers willing to teach me a few useful phrases when helping customers and with some practice and repetition i was able to work out the rest. I understand not every company is willing to take that kind of time and would rather pick someone who's already got a handle but at the same time I can't help but wonder if it's just a bias and it's not like it's something so minuscule it can be overlooked. In the same light it also bug me when that bias turns to workplace bullying. Sure "make the one we don't want uncomfortable enough so they leave" but that's not the making for a healthy work environment, hell I don't quite see a company with that same mindset being able to thrive because you can only put up the front for so long before the callousness shows through.
Maybe it's more of a perspective based opinion but it's something that I've thought on for a long time for as long as I've lived in the area I'm at and given the experiences I've had and the stories that have been shared I wonder how much people see as opposed to looking at things from their "face value" given not everything is skin deep.