We have no time
I'm sure that, without time constraints, we would ultimately find the technological solutions to the problem (whether we transition to a socially just world at the same time is another matter entirely)
BUT - and it's a big but, I cannot lie - you seem to be totally unaware of the time constraints. The UNEP Emissions Gap Report 2019 demonstrates that we have until 2030 to be on the right trajectory to have a good chance of limiting global temperature increase to 1.5degC. Nuclear fusion by 2050 is too late. What your statement about plastic recycling has to do with it, I don't know. The idea of governments taxing oil to the hilt seems wildly optimistic as we see the world tilting ever closer to neoliberalism and global capitalism. Carbon capture and storage seems to be the 'get out of jail free' card that people play because they realise we can't live our current lifestyles whilst simply reducing the associated emissions - however, it's an unproven technology and 'one hell of a gamble' - to quote Kevin Anderson, a leading climate scientist. He also said,
“Many say that such rapid and deep change is unrealistic – but it’s much more realistic than believing a fair and progressive society can survive with 3, 4 or even 5C of warming,”
(, Sat 4 Jul 2020, 11:11, Reply)