I don't think you broke any (did not downvote). But you wrote something along the lines "Sysadmins were always the ones who focused on making things secure, and for a bunch of reasons they basically don’t exist anymore. I guess this is fine." before you edited the last bit out. I think those who downvoted you think that this is plain wrong.
I guess it's fine if you get rid of sysadmins and have dev splitting their focus across dev, QA, sec, and ops. It's also fine if you have devs focus on dev, QA, code part of the sec and sysadmins focus on ops and network part of the sec. Bottom line is - someone needs to focus on sec :) (and on QAing and DBAing)