Here is the pipeline groovy code for tested.

node {
    sh: returnStatus: true, script: "while: true;do sleep 10; echo sleep 10 sec;done"
}

After started the job, It can not be abort with button of red `X`, also can not be abort in the console with Click here to forcibly terminate running steps which the actual link is example.com/job/<JOB_NAME>/<BUILD_NUMBER>/console#