I think you are tring to get the value from html before rendering completely. If you try to print the value in a button click, it will works.
depend on your code I have modified a little.Try the below, it is working for me.
ngAfterViewInit() {
console.log("afterinit");
setTimeout(() => {
console.log(this.abc.nativeElement.innerText);
}, 1000);
}
Note: If not working, please increase the timeout time and try again.