Ok, willfull ignorance is a choice we must make.
There is a separate layer of reality, very convenient for someone. And in the past, it was pretty easy, to change "common" reality as answer to something that appeared only in that "separate layer".
19 years ago. So called "Račak massacre". Belarussian experts determined that dead corpses was transported from other places and weared in civil clothes after death. No, it was declared propaganda and desinformation and some finnish experts under control of Kurt Volkner (heard that name?) decided that it was a massacre. Belgrad was bombed in "response", numerous fatalities, country id divided. Documents produced by "finnish experts" is still classified. Even if it turned out later that there was nothing about Serbian responsibility, Serbs is punished already, Kosovo is created and military bases put there. Done deal.
15 years ago. Famous Colin Powell test tube wit white powder. As a result, Iraq turned to mine field, 150000 to 600000 people dead, ISIS created. Proven that "proofs" was intentionally forged by US intelligence services and administration, nobody was sued, everything is fine. Done deal.
Recent times, before winter Olympics. Mr. Rodchenkov writes something that used as a base for a massive PR campaign against russian athletes. Now in CAS they trying to avoid to say the same under oath. Turned out that it was mostly lie. But harm already caused, many athletes skipped Olympics at peak of their form, few was forced to cease career. Done deal.
Weeks ago. Skripals that was "poisoned by absolutely deadly chemical weapon that can be done only in Russia". 150 diplomats expelled, a number of international cooperation programs is broken, new sanctions introduced. Massive propaganda campaign caused fear between western public, they started to think that some Russian will come to put some poison to their door handle. Skripals (suddenly) not died and quickly recovered, then was hidden from press and public. Turned out that same substance was patented in US, and can be produced by many labs around the world. But as always - Done deal.
Even later. Syria, Douma. Alleged chemical attack. Massive cruise missile attack from US/UK/FR. Nobody can find victims or traces of chemical use. Syria find witnesses and people who participated in video that was used as "proof" for massive rocket attack, they fly to Hague... And US together with "allies" simply refuse to participate in a meeting where witnesses present and can be questioned. But something is a bit different. US military saying that all cruise missiles hit targets, Russian military shows a couple of missiles that definitely DOES NOT hit target and a number of pieces that suffered damage from anti-air missiled, not explosion of own warhead. Syria get fresh S-300 systems, Israel panicked.
Something changed in relation of "alternate" and common reality?