I don't think this is a fair characterization of these students' abilities. Kids struggle not because they are too dumb but because the combined course workload

I don't think this is a fair characterization of these students' abilities. Kids struggle not because they are too dumb but because the combined course workload is egregiously high. And they also have part time jobs that eats into their time. And the professors are selected for their research and not for their teaching skills. And therefore some kids drop out of STEM and some commit suicide.