Due to the fact that the BBC won't let me embed their videos (and I'm not going to dive through html hoops in order to get around their decisions in that regard), I have to link to this bit of history and advise you to have a look.
For 1968, the people look very modern and normal. They are not your typical freak show of hippies and po-faced yokels. These people look very much like retro enthusiasts. All they need to do is check their phones and wander off in order to text and they would remind us of ourselves.
Why is there a debate about Lichtenstein? What did he steal and what did he do that was so awful?
Do you mean to suggest that everything that appeared in every comic was completely original and not stolen or suggestive of other things?
Let it go.