Is my generation not into great riffs?

I have noticed a lot in my opinion that what is missing compared to what you might say is classic rock/metal and todays modern music is a great riff.

Like there is no unique style or tone, no swagger or attitude in it like the older music. It is for me to explain.

You know that melody,or line in music that just makes damn thats just killer right there.

Maybe it is just me? Not saying that it makes the music bad or anything but I miss that simple but really clever stuff.

Like Black Sabbath I wish I could write riffs like that guy (Tony Iommi ) why has it some bands are trying so hard to write complicated things rather than just get together and write some music?

I don’t mean to start a flame war or something I just want to know basically how you feel about it?