You must really Care about education a lot.

Another way to tackle this issue is making class more interesting and beneficial

I totally agree with you on this. In my view I think the use of laptops and phones should also be used in learning, the lecturer could ask the students to view a certain video on their phones, then Explain as they watch.
But the sad truth is this, no matter how interesting or short you make the class, there must still be those who get bored, this is simply because they have made up their minds not to learn.