It's a good thing.
It's a bad thing.
It's a little of both.
I don't know.
The languages that are going extinct are you know, things like amazonian rainforest tribal language that is spoken by 300 people. A worthless language with no real alphabet, great works of literature, etc. In all things, those people would be better served by learning portugesse.
Or some other such languages. So no language that has a decent population on the map isn't going extinct and won't go extinct. Just the languages that are... you know... pointless.
Anyway, this isn't good or bad. It's neither. It's just the march of time.
Languages are for communication...everything else is gravy.
But, like so many things, humans become ridiculously attached to things they are used to and start fighting beyond reason to preserve them...like language.
If we woke up tomorrow and everyone spoke only one language, the world would be, IMO, better off because everyone would understand everyone.
Multiple languages separates humans; whereas language should bring people together.
Having tons of useless languages doesn't feed anyone or cure any disease of offer anyone shelter...they are useless and divisive.
'What kind of sick and twisted toy factory is this?'
'We are all the sum of our tears. Too little and the ground is not fertile, and nothing can grow there. Too much, the best of us is washed away.'
"Better to be dead and cool, than alive and uncool."
Languages die all the time and have throughout history. Anyone speak Etruscan these days?
"To waste, to destroy, our natural resources, to skin and exhaust the land instead of using it so as to increase its usefulness, will result in undermining in the days of our children the very prosperity which we ought by rights to hand down to them."~ Theodore Roosevelt (Message to Congress, Dec. 3, 1907)
For those who are curious: Etruscan language - Wikipedia, the free encyclopedia