If your Christmas lights used the same amount of electricity as the whole town? Maybe.

Thankfully we have an amazing new technology called Light Emitting Diodes so we don't have to worry about that theoretical problem.

LEDs still use electricity. Are you in charge of setting the limit on how much use is acceptable?

I think in 1-2 generations people will look back and wonder about how dumb we were about our energy consumption regarding the environmental challenges we were facing.

Most of ou current Christmas folklore is pretty pointless lights being a pretty recent invention when compared to christian religion timespan. Same as for Christmas trees, they were pretty much on point when everybody had a wood stove to throw them in after Christmas and warm the house. Pretty pointless nowaday when you live in a flat...