Granted I don't have this lens, but Canon list this lens at Weight 52.6 oz./1490g or 1490 Grams = 3.284887703800 Pounds. What is so bad about that?
I've walked around for hours with a 300mm f2.8, taking pictures of wildlife @ 5.6 lbs and granted it was a workout, but still...
Carrying a single lens is not such a big issue ... but try doing a trek ascending 4,000-5,000 feet with a few lenses, multiple camera bodies, a tripod and some other stuff you need. Weight does become an issue at some point and its better to be light rather than heavy! OTOH, maybe you are stronger than I am
1DX, 5D3, 600D, RX100
16-35L, 24-70L II, 70-200L II, 100-400L II, 50L, 85L II, 135L, 17TSE, 24TSE, 40, 100 macro, 18-55 II, 55-250 II, 1.4x III, 2x III, 600RT x 4
When it comes to gear, it is better to vote with your wallet. Bitching on online forums like a lunatic doesn't get you anywhere!