Protest Songs: why do I feel like there were many more (and many more that were popular) in the 60’s and 70’s?

I’m a guy approaching 60, so I’ll start by saying my perception may be wrong. That could be because the protest songs from the late 60’s and early 70’s weren’t the songs I heard live on the radio but because they were the successful ones that got replayed. More likely, it’s because music is much more fractured than...