Welcome to college--and congratulations on joining the ranks of the insolent whiners. Your classmates disrespect the proffie, and you disrespect your classmates. What wonders you'll achieve for the classroom atmosphere!
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No, it's not your job to guide your classmates (because I know it's extremely strenuous and woefully time-consuming to jab your neighbor and say, "Put your phone away or I'll punch you in the jugular"), but I'm fed up with students strutting around like autonomous narcissists who figure they just happen to be inconsequentially lumped into a building with some other autonomous entities. We are a community, human beings who mutually influence each other in ways big and small; we may have nothing in common except omg I totally have those shoes!!! and a presence in the same classroom, but the very least we can do for each other is behave like human beings who recognize that, by golly, I can't build myself up as thoughtful, feeling human being by the sheer force of my free will! The people around me actually affect me! And I them! Maybe, just maybe, I should try to work with these people!
I know, I know, it's a blast to use your mighty ego as a wrecking ball, but just think of the novel possibilities: if you leave it at home, you'll be able to channel all the energy it takes to lug it around into something constructive!