I agree, but to think of the Bob as indicative of all wilderness is myopic.
Take the I-70 corridor, Denver has very limited req opportunities. Honestly one of the biggest plus of coming to Boston, tons of single track from the house... no crowds. Partially this is due to a fraction of the user group + and partially every single town has it's own green space, and a lot trail systems. Aurora, no dirt within 45 mins, (highline canal.. haha). Basically everyone is funned into evergreen/conifer for close access or up and down I-25 or I-70. Traffic is a mother all summer and winter.
So wilderness issue, you head up into the mts and you got the Mt.Evans, James Peak, Vasquez, Ptarmigan, Eagle's Nest, Lost creek, Indian peaks, RMNP, Comanche Peaks, and Rawah. A huge portion of CO's wilderness is essentially on the outskirts of the city, you want to bike without crowds you are driving a long ways. You aren't doing a there and back 5 hours 1 way, so more people camping, more people shitting in the woods, etc.
People move to CO specifically because of the rec opportunities, this problem is only going to get worse.
Perhaps opening up specific wilderness areas on the front range to a wider variety of uses would help alleviate pressure on the western slope. Folks aren't going to car camp to bike if they don't have to...
I mean bikes in Eagle's nest... there is a double track road that run's through a lot of it with big metal gates from before it was designated

, portions of it are within a couple hundred feet of peoples houses. It's big 'W' wilderness but certainly not wilderness in the way the Bob is wilderness.