It doesn't matter at all if "God is speaking" unless He makes it clear. It just doesn't. I wouldn't "stick my fingers in my ears" like you seem to be assuming, but it would take a HEFTY amount of evidence to convince me that "God" was speaking to me. I am talking monumental evidence, akin to my understanding that my dog is right there in front of me barking at me when she does so... and it would need to be VERIFIABLE by anyone also witnessing it. None of this "God spoke to me in my closet" crap. If I were alone and "God" came to speak to me, I couldn't even accept that as evidence. Not by a long shot. And if God knows anything about me, He would understand this, and know that it is going to take an especially obvious and public display to get to me. That's it. Barring that or something comparable, screw Him. He can do as He pleases and I won't believe a lick.
I doubt it, and you can't demonstrate it. So I doubt you too.
This is nothing even remotely similar. A scientist can take his findings to a fellow enthusiast and SHARE any knowledge gained from his observations DIRECTLY. Completely different from anything supposedly involving "God" that has ever gone on in the history of man. Seriously... don't even try to compare these, it is fruitless. You have nothing compelling to offer, and science is keen on offering only what can be readily digested by anyone because, being based on observation, it matches to the reality we can all perceive.
The real problem, in my opinion, is that people have gotten and remained too comfortable believing in things without evidence. They're encouraged to do so by figures in religious authority, for goodness sake. And once you accept a few things based on little to no evidence, you are more apt to feel that it is okay to do so in other areas of your life. You can believe that atheists are Satan worshippers without evidence, that someone is a witch without evidence, that the election was rigged against Trump with no evidence, etc. It's dumb. Downright dumb. I don't trust the mindset nor actions of people who believe and push things onto others without evidential warrant.