Plagiarism in College

Question for those teaching at the collegiate level-

Are you seeing more plagiarism in students? What kind of consequences are they getting?

After grading several senior-level projects, I’m truly at a loss. No matter how many “zeros” I give, the kids just don’t care about whether they copy straight from the internet or generate with AI.

I try the standard “In college you better not do this …,” - but do they actually get away with it in college?

Genuinely baffled.

(ETA: I teach high school. Thank you so much for the insightful responses!!)