The issue of security screening is a complex problem with a number of factors contributing. We have already discussed the airport's responsibility and the role of the contractor. Then we have staffing issues. Add to that, airlines that have priced checking in a bag at a level to seriously discourage checking in a bag, passengers who will never learn how to be efficient, rules that are taken over the top by jobs-worths. Now Ryanair has created their own problem, carrying carry on bags for free in the hold, the very thing they have tried to price us out of doing!
A toxic mix that makes air travel now far from enjoyable. I travel through airports in Turkey a lot, never have these issues, even at very busy airports.