We've had the technology to do all of that without fossil fuels for decades. We
are close to doing it in rich countries today,
despite both active opposition and the usual passivity of the status quo. Renewable energy sources are now cheaper than non-renewables, across the board, regardless of subsidies in either direction. England for the
first time since the Industrial Revolution generated more power with renewable sources than fossil fuels this year. Norway, an oil exporter, is on a path to be entirely fossil fuel free soon inside the country's borders. Germany and even the US have also had periods where large amounts of the country's energy grids were entirely renewable.
It's silly to claim we are entirely reliant on fossil fuels for all our modern conveniences, when everything but cars/trucks/shipping is mostly energy source independent and the grid is overall greener than it has ever been in decades, and getting greener. (And we certainly have the technology to solve cars/trucks/shipping today, too.)