You know, the laws of thermodynamics. Every machine generates heat. For example datacenters generate megawatts of it.
Even though you do have less greenhouse gases to trap the heat, you will be pumping more of that heat into the atmosphere, seas and oceans, warming everything up.
You're removing one aspect of climate change but not all aspects of it, still affecting the climate and ecosystems.
Also, for example, we still can't fly passenger and cargo planes with electricity for now, so you won't be able to remove all greenhouse gases, yet.
Look at the data [0]. Yes, energy production and heating is the biggest contributor, and even if you manage to remove it completely with the transportation sector via electrification, half of the emissions are still there.