Please.
I went visiting some local businesses in-person the other summer looking for a part-time job. One HR lady seemed annoyed that I showed up, and told me "we don't have a front door", and unironically said "keep checking our web site". She seemed confused when I asked her to hand my resume back to me. One vestibule intercom told me to put my application in the slot. One major international corporation told me that they would give me a decision on the spot, then changed their tune during the interview.
Please.
Netorking has its own problems that are much harder to solve.
For the time being, leveraging a network is still the best way to get hired.
I think in my career so far in ~8 companies and many clients, I only got one of those jobs From a "cold" job posting application. Everything else was at least a soft referral by an acquaintance.