I really love the GDPR for just making the life for such business models way harder.
Implementing data, analytics, tracking and stuff in a way that is compliant with GDPR (or its local equivalents) is doable and from an architectural point of view even interesting imho.
I love building GDPR conforming data architectures with my clients right now.
As I am still having 7 days to go and that is just a personal blog, I plan on using my free time to do that (would just take 3 - 5 minutes to disable everything if I wanted to by removing GTM and redeploying).
So removing everything is quite easy. It is way more difficult to selectively remove singular features - in this case the DoubleClick integration. As I am not doing that exact step all day (even being a data analyst with a focus on web data), I would have to look, where to configure that exactly. That would take longer.
So be snarky - I don't care, as I am already preparing for GDPR compliance and will have my house in order come May, 25th.
[Edit] Took 12 minutes in the end. Will take some time until caching catches up. Using a incognito instance all good to go regarding the trackers. "Only" the update for the privacy page remains for the weekend to do.