If you can show me, or anyone, even a grain of proof which speaks against the things that people gather to observe on Sundays, Fridays, or Saturdays then I'll be delighted to consider it.
This common fallacy by believers to try to shift the burden of proof from the believer to the skeptic doesn't work.
If I claim there are invisible pink poodles with gills who live at the bottom of the ocean and care deeply about your sex life, the burden is on me to prove it, or you have no reason at all to believe me. You have no obligation at all to disprove it.
If I claim there's an invisible blue dragon who breathes invisible heatless fire sitting on my shoulder right now, the burden is on me to prove it, or you have no reason at all to believe me. You have no obligation at all to disprove it.
If I claim there's a teapot in orbit around the sun somewhere between Venus and Earth right now, the burden is on me to prove it, or you have no reason at all to believe me. You have no obligation at all to disprove it.
The same is true for all claims; The burden of proof lies with the claimant, not the skeptic.
But it was not me who brought in this type manoeuvring to the discussion, but rather that was you:
No, we don't join hands on Sundays singing about how gravity is real in our own echo-chamber to try to convince each other that it's true in spite of tons of actual factual evidence against it. Same goes for the rest of science, which is just confirmation of the observable facts that surround us all, you included, like it or not. Some people just look a lot deeper into things than others to discover and confirm the truth about things you apparently can't even imagine, no matter how much evidence is presented to you.
If you can disprove any accepted scientific theories, you should jump right on that and win yourself a Nobel Prize.
Literally tens of thousands of pieces of evidence supporting the scientific theories you question as "cobbled together" exist, and more are being discovered, revealed, and shown every day by the people investigating them. Those people are called scientists, and that's their job.
While there is no "obligation" to believe a claim nor to disprove it, in science, anyone who
CAN disprove one of those theories with overwhelming evidence like that instantly wins fame and fortune in the scientific world, including Nobel prizes, so testing those theories is constantly going on. The fact that those theories continue to withstand those many tests over time lends even more credence to them. That is why I suggested that if you really think they're "cobbled together" (without actual evidence) then you should get in line with 10,000 others trying to disprove them, and win a Noble if you can really pull it off.
Here's where the rubber meets the road: No scientist says, "I claim that "X" is true. I have no proof, no evidence, nothing to support it, not even a mathematical equation. I just pulled it out of my butt last night after too much heroin and pizza. If you cannot disprove what I've just now claimed, you must accept it."
That's essentially what you're saying though when it comes to those beliefs that take place outside of scientific study; Beliefs that involve the supernatural and have no proof or evidence at all - only claims. You're saying that's all they need are the claims, and that the skeptic has some obligation to disprove those claims, or they remain viable.
But they don't.
Any claims without evidence are on the same footing as the claims without evidence about invisible pink poodles, invisible blue dragons, or teapots in orbit, as examples. They don't require being disproved by anyone to remain unbelievable. They can be waved away and dismissed with a laugh, at least until such time as credible evidence from the claimants of any of them is presented, examined and tested.
They are very much different from the scientific theories that have tens of thousands of pieces of evidence that continue to withstand scrutiny and testing.
Now, it's about time to recognize that this thread is headed into Lock-Land as it gets deeper and deeper into religion, which is a no-no here at TPF. I've been trying my best to avoid going there, but it's getting more difficult with each new round of posting. If I stop replying, it's because I'm going to try to avoid breaking that rule. It doesn't mean I don't have a reply, just that I'm not going to voice it here. Feel free to PM or email me if you want to continue the conversation deeper into religion.