The energy mix that currently goes into bitcoin mining is significantly greener than the energy mix that facilitated your ability to post the above statement. By and large, those that complain about bitcoin energy use couldn't give a fiddlers about energy use and hold more deep seated objections to the decentralised cryptocurrency. If they did, they'd be calling for the greening of the entire grid - not taking a dictatorial view and deciding what people can and can't use energy for.I don't see any benefits in causing energy consumption more than several large countries, more than Argentina, more than Finland, at a time when our planet is burning up through excessive energy consumption.
Otherwise, as per Cardano93's posts, bitcoin mining has the potential to impact electricity grids positively. It can act as a subsidy for renewable schemes that are currently unviable. It can smooth out the duck curve - helping to even out network supply/demand - making energy networks more efficient.