Back to your point about it being more than one factor... We tend to think of the thermal exchange system as an “open system” when in reality it is a semi-closed system just like an A/C heat extraction system.
Actually it is three closed systems in a series interacting with each other from the equator to the pole in both the southern and northern hemispheres. There has been a change in the shape and interaction latitudes of the Atmospheric cells themselves also.
https://www.esrl.noaa.gov/csd/assessments/climate/2017/CSSR_Ch5_Circulation_and_Variability.pdf
True. That is why (climate scientists) attempts to blame one 'side' of the system for the operation of the system is pointless. Without both heat and cold, no exchange would occur.
like an A/C heat extraction system.
Which IS a big part of 'man made warming'. We 'cool' the inside of our cars, houses, skyscrapers, server farms, etc. , so where does all the 'heat' go ?
The other big part (even bigger, actually) is that all of our mechanical contrivances produce 'heat'. Especially internal combustion engines.
This does have an effect on local temperature.
However, one cloud in the same local area can cause the temperature to drop several degrees in seconds.
Which is more powerful and influential ?