They're totally happy with renting out space that they paid (and pay) nothing for, for prices like 1 USD per month. Why would they help move to IPv6? Not happening. Short term solution to this is the obvious: force everyone not using their space to hand it over. What you can't use for 5 years into the future should just be handed back. Ban large ISPs from charging for IPv4 addresses to their downlinks.
Everyone should understand that #Bitcoin is not the currency of the internet, IPv4 addresses are. And they're going up in price...
It would be nice to have more ips, like with IPV6, but that **ON ITS OWN** is not going to make it easier...