Is it a bad thing that people are diverging into a greater multitude of more varied filter bubbles than ever before? It should be fine, as long as you can easily travel among bubbles. Back when filter bubbles were more geographic and cultural, it wasn't so easy to poke your head out and see really different worldviews. With the internet, it's easy.
People use the phrase "melting pot" like it's a good thing, but I don't want to be melted in a pot.
> it wasn't so easy to poke your head out and see really different worldviews. With the internet, it's easy.
That doesn't really matter if nobody does it -- and it turns out to be even easier to find (& stay in) communities that simply echo & reinforce your worldview.
As for the rest, I think you're just being contrary for the sake of being contrary. It seems fairly obvious that one of the least intellectually healthy things out there, from individuals all the way up to societies, is to be surrounded solely by people who agree with you. Isolation breeds ignorance and extremism.
People use the phrase "melting pot" like it's a good thing, but I don't want to be melted in a pot.