there is something to what you say, but......
I can state a fact like "The US government already spends more per capita on healthcare than any other govt in the world" , I can then argue with Tom over whether this money is available to actually fund a national healthcare system. (actually this never happens, so the analogy is flawed.....)
When it comes to UFOs/anomalous phenomena, you got nothing, nada, zip. Circumstantial, anecdotal and some whacked out theoretical "evidence".
Absolutely nothing concrete - coz if there was something concrete, tangible or real, well, we wouldn't need to be talking about "believers"......