This "extreme black crush" of yours is you seeing how light should be propagating, creating proper occlusion/contact shadowing where necessary.
But since you're used to seeing this lighting being totally and utterly fake in pretty much all titles of the last 15 or so years, you think that it's something incorrect when in fact it's the opposite.
One thing worth remembering is that most people who are angry with 20 series cards price/performance had never even considered buying anything like 1080Ti you've mentioned and are using something like 1050Ti/1060. For them 20 series is useless since there is no - and there won't be - 20x0 card sold on such pricing. They are using cards with performance which isn't really enough to handle 4K workloads - or even 1440p ones, unless you're willing to go with some really low quality settings. And they can't upgrade to 20 series because even the slowest 2060 costs some 50-75% more than 1060 (3/6 GBs). This is where the most rage and disappointment in Turing is coming from I feel. The rest is just the usual rationalization.
DLSS 1x will only improve performance if a game is shading a frame in DLSS resolution slower than tensor cores are rebuilding the resolution with DLSS. After some point of engine's performance, DLSS will become more of a limiting factor than shading which may lead to performance _loss_ with DLSS enabled compared to just rendering in native res without DLSS. I'm not saying that this is the reason for a strange limitation on DLSS we've got in BFV but it's a possibility.
