Actually lights consumes more than fridges in terms of residential electricity.
Improved efficiency is one of the things that allows us to have continued economic production despite reducing usage.
Let’s talk real. Compared to fluorescent lamp, LED comsumes half of energy. It’s not like they comsume nothing. Over 68% of sockets in American households already use LED in 2018 and 13% of energy was used in residential lighting in 2018. If 32% changes to LED it will lower the percentage to 11% which is still more than what we use to refrigerate.
In 2017, 1% of households had all sockets using LED and 71% had not a single socket using LED. 11% still had all sockets using incandescent. https://www.eia.gov/todayinenergy/detail.php?id=31112