would you rather have no security and feel good knowing anyone can walk into the airport unhinged and hop on an airplane?
Do you constantly worry about "unhinged" drivers while walking on the sidewalk? Are you constantly worried that you would be the victim of an intentional attack like what recently happened in Las Vegas? Do you believe we need to go through the "security theater" motions in order to "mitigate" the, for all practical purposes, negligible risk of something similar happening in the future?
In any case, I am at a similar risk of someone unhinged killing me and hundreds of other people every time I get a local train into the city, which requires no security checks at all. This was, unfortunately, demonstrated in the 7 July attacks in London, and I personally know people who were caught up in those attacks and hurt so I'm the last person who's going to be flippant about that possibility. I still feel just fine about my survival chances getting on a train, though. More people get hurt and killed on our roads most weeks than died in the 7/7 attacks, and those were more than a decade ago and haven't been repeated since.