You mean the half of humanity without clean water, reliable electricity, and certainly no Internet emits less CO2 than the top 10% (630M!) wealthiest people in the entire world? There are not 630M Billionaires. There are not even 630M Millionaires. An income of $80-100k puts you at 10% worldwide.
Sure, go right ahead. Tell the family with an income of $80k that they need to cut out their use of private jets and mega yachts. That'll fix climate change right up.
Even now, my brain won't ever wrap its head around modern countries like Ireland and N. Ireland feeling the need for things like "peace walls" between neighbors.
Your comment sums up a lot of my feelings: a true peace can't be forced from the outside. It's way too complicated and emotional for simplistic shit. And you can see it in the comments around here too. Everyone's wrapped up in intense anger, blame, and reciting the litany of past horrors as justification for new ones.