Difficulties in getting in entry level engineering graduates

Here are some of the difficulties we are finding in recruitment.

1. Most applicants simply click the apply button and really does not read the job posting and the requirements for the job.
2. Most applicants do not check the inbox for any responses to the applications they have sent. This is about 80% of all applicants.
3. Out of the20% who read the responses and who actually respond, do not read the incoming email properly and do some random things. We have no option to progress with the application.
4. Now from the balance, who actually read email and take follow up action, 90% are not suitable because of lack of basic high school mathematics and general aptitude knowledge.

I am not sure whether all recruiters are facing the same problem. We surely are facing this issue