Almost all of the world’s national governments have signed up to the Paris Agreement and if they follow through, we could drastically reduce global carbon emissions and slow down the rise in temperature. Look at the difference in emissions between doing nothing and sticking to the Paris Agreement.
You say we can fix it. Those countries that have signed up are not meeting their commitments and aren’t willing to take the actions need to meet them and looking at your graph if they did meet them we will still have Catastrophic Climate Change.
It is a waste of time talking to people and trying to get a grass roots movement going. Someone needs to talk to the people in power and get them to save the planet. They know what is happening.