repubs use this argument because it works on ignorant people - and I am one of those people that thinks global warning is NOT MANMADE.
The better argument they should be making is "weather is cyclical, yes, but mankind has nothing to do with it." BUT, their ignorant, trump-loving base cannot understand that. So, they roll with the argument about this morning's weather, something these low-IQ folks can comprehend.
When smart people debate, it's all about "Look, there have ALWAYS been weather cycles!~" But in a world that is 6000 years old, there cannot be millions of years of climate data, ice ages, etc. (I'm a huge believer in God and that he created all of us - but not in 6000 years, I still accept science)